1. Mites

Mites Do you have scary mites?

In fact, mites are no more dangerous than other germs we breathe in the air, so when should we pay attention? The skin gradually becomes rough and peels. There is itching on the face at night. When you get up in the morning, use soft paper to gently wipe any oil seepage on both sides of your nose or forehead. The pores gradually become thicker and larger, and blackheads appear in the pores around the nose and continue to increase. Acne and pimples recur. Acne on the nose recurs, the capillaries dilate, and the skin begins to become hypertrophic and red and swollen like "orange peel". Small red bumps appeared on the chest and back. ?Hair breakage, split ends, and increased dandruff also occur.

If more than two of the above situations are happening, be careful, the mites may have already "set up camp."

Remove mites

In fact, mites are nothing to be afraid of. As long as you pay attention to the following points, you can stay away from mites: Pay attention to the cleanliness of the living environment and eliminate the source of mite infection. Pay attention to personal hygiene and regularly use professional mite removal products that will not cause harm to the skin. Use skin care products that suit you. Don’t artificially burden your skin. Try to choose high-quality products with natural and pure ingredients. Pay attention to eating a light diet, but do not eat excessively high-quality foods and condiments. When there is a lot of oil secretion on the face and an increase in mite metabolites, resulting in a slight inflammatory reaction in the skin, you can consider using cleaning and maintenance products with mite removal functions. However, not all mite removal skin care products can "do it all". When choosing, in addition to the brand In addition, you should pay more attention to the ingredients. Natural ingredients extracted from pure plants will not cause skin allergies or discomfort, and can have a gentle and lasting effect, bringing long-lasting protection. Remember to start with your face when doing the cleansing steps. Do not squeeze pimples or rashes with your hands. Use your fingertips to gently make circular motions to remove surface impurities and excess oil. If you wear heavy makeup, it is best to repeat the cleansing process again to ensure that any remaining makeup is removed.

Terrible mites

"You have parasites on your face!" You must be greatly shocked when others say this. However, this is not alarmist. According to data, more than 98% of faces have this parasite, commonly known as "dust mites", and the chance of adults being infected with mites is 97%. The face and head have the most abundant sebaceous glands all over the human body, so it is easy to find the footprints of mites on the face. Mites use the pores on the face as their nests and feed on the sebum secreted by the face. People with oily skin, in particular, will have more parasites. Allergic diseases, serious skin problems, common skin troubles, etc. are all caused by mites. Cross-infection is caused by bacteria entering and exiting the pores, or dirt produced by mites clogging the pores.

Girls are always busy whitening and taking care of their skin in summer, but without removing the mites in the hair follicles first, those expensive skin care products will become a feast for the mites, not only unable to whiten and moisturize them Instead, the mites become more rampant and create various problems for the skin. To use an analogy: it is like we use nutritious skin care products every day to raise the mites like pets, so that they are all strong and healthy, but the skin is in trouble. Suffer from nutritional deficiencies and mites. Therefore, if you want to have truly healthy and energetic skin, it is very necessary to do a thorough deep cleansing first.

What are mites?

The bodies of mites are relatively small. The largest mites are no more than 1 to 2 mm, and the smallest ones can only be seen under a microscope of 50 to 100 times.

Mites can be said to be everywhere, on the ground, in the air, in the water, inside and outside living things. They reproduce quickly and come in many types. Among them, the most harmful ones to the human body are Demodex, scabies and dust mites. . In daily life, people are accustomed to calling Demodex mites mites. Because they destroy human skin, especially facial skin, they attract the most attention.

According to surveys, the infection rate of Demodex mites among adults is as high as 97.68%. Demodex parasitizes in the hair follicles in the most developed parts of the human body's sebaceous glands. It is common on the forehead and face, including the nose, around the eyes, lips, forehead, scalp, and even on the breasts, chest, neck, etc. It can overflow from the hair follicles with sebum or The hair follicles overflow automatically and are spread through items such as mattresses or washcloths, so it is familial.

Anyone from children to the elderly can be infected, and infection in young children will lead to lifelong parasitism. People with mild infection often have no obvious symptoms, or may feel slight itching or stinging. The local skin is slightly raised into solid nodules, which appear as red spots, erythema, and papules, and can last for several years without healing.

Most people will develop dermatitis with very mild symptoms. If not paid attention to, it can cause the hair follicles to expand, block the hair follicle openings, lead to infection of the hair follicles, and produce inflammation around them, which will destroy your beauty in a short time. , causing red and large comedones or blackheads, which recur and eventually lead to rosacea. Clinical investigations have shown that patients with rosacea dermatitis, erythematous papular dermatitis, acne and seborrheic dermatitis have a higher infection rate and degree of infection with Demodex than normal people.

Scabies mites live on the surface of the skin of humans and mammals. The activity, feeding and excretion of scabies mites will irritate the skin, making people feel unbearable itching, which is more severe at night. As a result, patients often scratch the skin and then develop secondary bacterial infection, resulting in abscesses, folliculitis or boils. , mostly seen between the fingers, flexion surfaces of the fingers and wrists, cubital fossae, armpits, etc.

Scabies mites can be transmitted through clothing, bedding, or directly from person to person. When an epidemic occurs, the entire group of people will suffer from scabies. Household pets can also spread animal mange to people.

The harm of mites to the human body is not limited to the skin. According to statistics, about 80% of allergic asthma, allergic rhinitis and dermatitis are related to dust mites. Dust mites mainly breed in bedding in the home environment, such as mattresses, quilts, pillows, sofas and carpets. The secretions and excretions of dust mites are strong allergens. People with allergies can develop dust mite attacks if they inhale the allergens. Asthma, allergic rhinitis and atopic dermatitis.

Demodex is relatively stubborn, and symptoms are often suppressed during medication, but then relapse. Rashes around the eyes and nose can be treated with 10% sulfur ointment, and other areas can be treated with 20% methyl benzoate emulsion or 5% benzoic acid peroxide lotion plus 5% sulfur, or with metronidazole taken orally or externally.

Wash bedding frequently and use separate face towels. If you are infected with scabies mites, you should consult a doctor for diagnosis and treatment in time, and apply 10% sulfur ointment to the entire body.

Bath frequently, change clothes and quilts frequently, family members should be disinfected and treated at the same time as scabies patients, and those who often come into contact with pets and livestock should be more careful. Preventive measures should be taken frequently in schools, kindergartens, and dormitories. Every 0.5 square meters of house dust contains 12 dust mites, which are harmless to humans.

Dust mites like warm and humid environments. Nowadays, more and more units and families use air conditioners, which are particularly prone to breeding dust mites. Therefore, the key to preventing and controlling dust mites is to keep the house ventilated, dry, clean, dust-free, and frequently Wash quilts and sheets, and try not to lay carpets in the room.

What should I do if there are mites?

Mites belong to a class of tiny animals belonging to the phylum Arachnida and the subclass Acarina. Their body size is generally about 0.5 mm, some are as small as 0.1 mm, and most species are less than 1 mm.

Both mites and spiders belong to the Arachnida. Adults have 4 pairs of legs, a pair of tentacles, no wings and antennae, and the body is not divided into three parts: head, thorax and abdomen, but is fused into a sac-like body with Different from insects. The insect body is divided into jaw body and body. The jaw body is composed of mouthparts and jaw base, and the body is divided into podosome and terminal body.

There are many hairs on the body and feet, and some of the hairs are very long. There are mouthparts at the front end and a variety of food habits.

More than 50,000 species of mites have been found in the world, second only to insects. Many types are related to medicine.

In recent years, it has been discovered that mites are closely related to human health. For example, mites such as mites, chiggers, scabies, Demodex, mealybugs, house dust mites, and cattail mites can bite people and suck blood, infringe on the skin, and cause "Rosacea" or demodicosis, allergies, urinary tract mites, pulmonary mites, intestinal mites and scabies, seriously endanger human health. In a broad sense, mites can be said to be everywhere, on the ground, underground, in mountains, in water, inside and outside organisms. They reproduce quickly, in large numbers, and in many types. For example, spider mites (also known as red spider mites) and pink mites can harm crops, Fruit trees; scabies mites, hair follicle mites and lung mites are parasitic inside and outside the body of humans and animals, spreading a variety of diseases.

Dust mites in our homes, floors, and carpets can cause many allergic diseases (asthma) in people. There are two main types of mites that parasitize the human body. One is follicular mites, also called human demodex, and the other is sebaceous mites, which live in the sebaceous glands of the human face. They are generally referred to as mites.

Scabies mites belong to the order Acaridae and the family Sarcoptidae. They are permanent parasitic mites. It parasitizes in the epidermal layer of the skin of humans and mammals, causing a stubborn skin disease with severe itching, namely scabies.

Shape: The body of the adult scabies mite is nearly round or oval, with a raised back, milky white or light yellow. The size of female mites is 0.3~0.5*0.25~0.4mm; the size of male mites is 0.2~0.3*0.15~0.2mm.

The jaws are short and located at the front end. The chelicerae are like pincers with small teeth at the tips, suitable for eating the cuticle tissue of the host's skin.

The pedipalps are divided into three sections. No eyes and valves.

There are horizontal wavy stripes and rows of scaly skin spines on the back of the body, and there are several pairs of rod-shaped bristles and long bristles on the back half of the body. The ventral surface is smooth, with only a few setae and 4 pairs of legs.

The legs are short and thick, divided into 5 segments, and are conical in shape. The distance between the front two pairs of feet and the rear two pairs of feet is relatively large, and there are horny protrusions at the base of the feet.

The ends of the two pairs of front legs of both male and female mites have claw pads with long handles, called ambulacra, which are sensitive parts; the ends of the two pairs of rear legs are different in males and females, and both females have They have long setae, and the male has suction pads at the end of its fourth pair of legs. The egg-laying hole of the female mite is located in the center in front of the two pairs of rear legs, in the shape of a transverse slit.

The external genitalia of the male mite is located slightly behind the fourth pair of legs. The *** of both are located in the middle of the rear edge of the body. Life history: The life cycle of scabies mites is divided into five stages: egg, larvae, pre-nymph, post-nymph and adult.

Scabies mites parasitize between the cuticles of the epidermis of human skin, eat the cuticle tissue, and use their chelicerae and claws at the end of the tarsus to dig a tunnel parallel to the body surface and tortuous under the skin. Insects lay eggs in this tunnel (Figure 32). The eggs are round or oval, light yellow, with a thin shell and a size of about 80*180μm. They hatch into larvae in 3 to 5 days after being laid.

The larvae have 3 pairs of legs, 2 pairs at the front of the body and 1 pair near the back end of the body.

The larvae still live in the original tunnel, or dig another tunnel, and molt into pronymphs in 3 to 4 days.

The nymph looks like an adult, with 4 pairs of legs. The genitals of the anterior nymph have not yet appeared, and they molt into the posterior nymph after about 2 days. The egg-laying pore of the female metanymph is not fully developed, but the vaginal pore is formed and is available for mating.

The nymph then molts into an adult in 3 to 4 days. It takes 8 to 17 days to complete a generation's life history.

Scabies mites usually mate on the skin surface at night, between male adults and female nymphs. Most male worms die shortly after mating; the female nymphs burrow into the host's skin within 20 to 30 minutes after mating, molt into females, and lay eggs in the tunnel 2 to 3 days later.

It can lay 2 to 4 eggs per day and 40 to 50 eggs in a lifetime. The life span of female mites is about 5 to 6 weeks. Ecology: 1. Parasitic site: Scabies mites often parasitize in soft and thin areas of the skin.

2. Activities and Tunnel Digging Scabies mites live deep in the cuticle of the host's epidermis, feed on cutin tissue and lymph fluid, and dig with their chelicerae and pretarsal claws, gradually forming a tunnel parallel to the skin. of winding tunnels. The length of the tunnel can be up to 10~15mm.

The tunnel dug by the female mite is the longest, with small longitudinal passages leading to the epidermis at regular intervals. Male mites and metanymphs can also dig independently, but for very short periods of time. Pronymphs and larvae cannot dig tunnels and only live in tunnels dug by female mites.

Female mites can dig 0.5~5mm every day, and generally do not penetrate deep into the cuticle. Female mites are most active after mating and fertilization and can crawl 2.5cm per minute. This is also the period when they are most susceptible to infecting new hosts.

3. The influence of temperature and humidity. The activity, lifespan and infection ability of female adults after leaving the host are related to the temperature and relative humidity of the environment. The lifespan is longer when the temperature is lower and the humidity is higher, while high temperature and low humidity are detrimental to its survival.

The optimum temperature for female mites to spread is 15~31℃, and the effective diffusion time is 1~6.95 days. Within this time limit, the activities are normal and they have the ability to infect. Pathogenesis and diagnosis: The skin lesions at the parasitic site of scabies mites are small papules, vesicles and tunnels, mostly symmetrically distributed.

Scabies papules are light red, the size of a pinhead, and can be sparsely distributed with normal skin in the middle; they can also be densely clustered but not fused. There are often insect bodies hidden at the blind end of the tunnel, appearing as small gray-white dots the size of pinheads.

Severe itching is the most prominent symptom of scabies. The cause of itching is the mechanical stimulation of female mites when digging tunnels and the action of excretions and secretions produced in daily life, resulting in allergic reactions. Caused by. The itching is mild during the day, worsens at night, and gets worse after sleeping.

Due to severe itching and scratching, secondary infection can occur, leading to abscesses, folliculitis or boils. It is not difficult to make a diagnosis based on exposure history and clinical symptoms.

If scabies mites can be found, the diagnosis can be confirmed. In the past, the method of detecting scabies mites was to use a sterilized needle tip to prick the end of the tunnel and remove the scabies mites; or to drop sterilized mineral oil on the affected area of ??the skin, then gently scrape the area with a razor blade, and then examine the scraped object under a microscope.

Recently, domestic scholars used dissecting microscopes to directly examine skin lesions and found the outline of scabies mites with tunnels and blind ends. The diagnosis can be made by picking out the scabies ends with the tip of a scalpel, and the positive rate can reach 97.5%. . Many mammals.

What are mites

What are mites? Mites are microscopic pests that are not easily visible to the naked eye. When the sun warms up in the spring, these little mites start making waves. Its secretions and excretions are allergens. After entering the human respiratory tract or contacting the skin, symptoms such as erythema on the face, enlarged pores, rough and dark skin, sneezing, runny nose, nasal congestion, coughing, and asthma will appear. .

The main hiding place for mites in the bedroom is the mattress, so it is important to keep the mattress clean at all times. Another good way is to use a mattress cover that is impermeable to mites, that is, add a protective mite shell to the mattress, and pay attention to the ventilation of the room to reduce the humidity in the room. Here are some ways to remove and reduce mites.

1. Mites are not a hygiene problem, they will appear in the cleanest rooms. Still, it’s essential to clean your room regularly and keep it clean.

2. Pay attention to frequently keeping the room ventilated, because air humidity below 60% can make it difficult for mites and mold to survive.

3. Give up laying thick carpets in the bedroom.

4. The main hiding place for mites in the bedroom is the mattress, so it is important to keep the mattress clean at all times. Another good idea is to use a mite-impermeable mattress cover, which is to add a layer of protective mite shell to the mattress.

5. Minimize the placement of dust-collecting items in the bedroom, such as heavy curtains, fabric tablecloths, open bookshelves, potted plants (with flower soil), etc.

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Are mites really scary?

Have you changed your bedding? If you find that the skin on your face and body becomes itchy when you sleep, it may be caused by mites. My brother works in a hospital. He once said that there are about two million mites in one bed, which is very impressive. , so if you have similar symptoms, it is recommended that you clean your bedding regularly.

Moreover, scientific statistics show that in daily life, there are as many as 16 species of indoor mites, but most mites generally appear on quilts, mattresses, carpets, pillows, sofas, towels and other daily necessities. Yes, and as people clean, they enter the indoor air and disperse to every corner of the room and on the ground, so mites are everywhere. My brother recently bought a Rex Mite for his child. I think the effect of the mite remover is really good. My nephew doesn’t even sneeze anymore. You can give it a try! Those that can completely remove mites can also be disinfected, so it’s better to do it in one step.

How do mites grow?

Mites are microscopic pests that are difficult to see with the naked eye. There are many types of mites. Currently, there are more than 40 species of mites found living in homes, of which more than ten are related to human health.

The most common ones are dust mites, mealybugs, Demodex mites, scabies mites, etc. Surveys show that about 97% of adults are infected with mites, mainly dust mites.

Dust mite corpses, secretions and excretions are all allergens that can cause illness. They are distributed and breed in carpets, sofas, plush toys, bedding, cushions, mattresses and pillow cores. They feed on human sweat, secretions and shed dander and reproduce very quickly.

Secondly, there are: pink mites, which mainly breed in stored food and grain; Demodex mites, which mainly live in human hair follicles and sebaceous glands, such as nose, ears, scalp, chest, back, etc. Ear canals and other places; Scabies mites live on the surface of the skin of humans and mammals. It is worth mentioning that more and more families keep pets, which can easily lead to the direct transmission of scabies mites to people through clothes, pants and bedding, and even cause mutual transmission between people.

Can you tell me specifically what mites are?

Canine mange disease Canine scabies mange is a chronic parasitic skin disease of dogs caused by scabies mites.

Commonly known as epilepsy. Characteristics: Dogs show symptoms of severe itching, hair loss and dermatitis.

[Pathogen] Dog scabies mites of the family Sarcoptidae and genus Sarcoptes. Adult insects are round, yellowish white, with a raised back and a flat abdomen.

Female mites are 0.30-0.45 mm long, and male mites are 0.19-0.23 mm long. The body is divided into two parts. The front end is called the dorsal thorax, which has the first and second pairs of legs. The rear end is called the dorsal abdomen and has the third and fourth pairs of legs. The body surface has fine striations, cones, scales and setae, and a false head. There is a pair of short and thick vertical setae on the back, and there is a rectangular breastplate on the dorsum and chest. The *** is located on the edge of the rear end of the dorsum and abdomen.

There are 4 pairs of thick and short legs on the ventral surface of the insect body, and the distance between the front and rear pairs of legs is relatively far. On the 1st, 2nd and 4th pairs of legs of the male.

The female has a sucker on each of its 12 pairs of legs. There is a long seta at the end of the third pair of legs of the male and the third and fourth pairs of legs of the female.

The eggs are oval in shape, with an average size of 150X100 microns. [Life cycle] The development of scabies mites goes through four stages: eggs, larvae, nymphs and adults.

The entire development process is spent in the dog and is usually completed within 1-3 weeks. Scabies mites dig tunnels in the epidermis of the dog's skin, and the females lay eggs in the tunnels. Each female can lay 20-50 eggs in her lifetime.

The eggs hatch into larvae, which have 3 pairs of legs and a body length of 0.11-0.14 mm. The hatched larvae crawl to the surface of the skin, dig small burrows in the skin, and molt into nymphs in the burrows. The nymphs burrow into the skin, dig shallow tunnels, and molt into adults inside.

The life span of the female is about 3-4 weeks, and the male dies after mating. Scabies is most common in winter, late autumn and early spring.

Because there is insufficient light exposure in these seasons, dog hair is dense and long, especially when the kennel environment is not hygienic and humid, which is most suitable for the development and reproduction of mites, and dogs are most susceptible to the disease. [Symptoms] Dog scabies mites are more serious in puppies. They usually start on the head, bridge of nose, eye sockets, ears and chest, and then develop to the trunk and limbs.

At the beginning of the disease, the skin is red with rash-like nodules and a large amount of bran-like dander on the surface. Then the skin thickens, the coat falls off, and the surface is covered with scabs and cracks. The sick dog is itchy and scratches and rubs with its hind limbs from time to time. When the skin is scratched or the scab is broken, it may bleed. When there is infection, the affected part may have purulent secretions and a smell.

Due to the long-term and chronic infection of the affected dog's skin by mites, the dog keeps biting, scratching, and rubbing the affected area all day long, making the dog irritable and restless, affecting rest and normal eating. Clinically, it can be seen that the sick dog becomes thinner day by day. , Malnutrition, severe cases can lead to death. [Diagnosis] Confirm the diagnosis based on clinical symptoms and laboratory diagnosis.

Use a sterilized surgical blade to scrape the skin at the junction of the diseased skin and healthy skin to get the disease material. Place the disease material on a glass slide, remove 50% glycerin solution, add a cover slip, and place it Diagnosis can be confirmed by seeing live scabies mites under a microscope. [Treatment] (1) Cut off the coat of the affected area and clean the affected area.

(2) Ivermectin (harm-killer) 1% concentration. 0.5-1 mg/kg body weight, subcutaneous injection on the back, once every 6-7 months, 2-3 times as a course of treatment.

Most dogs can be cured after 2-3 clinical injections. (3) Medicinal bath therapy: Lindane, 0.03-0.06% medicated bath, repeat after one week.

(4) Apply 0.5% trichlorfon solution to the affected area to prevent the concentration from being too high or poisoning caused by letting the dog lick it. Repeat the application after 7 days. [Prevention] (1) The main purpose is to isolate dogs with scabies to prevent mutual infection.

(2) Pay attention to environmental hygiene, keep the kennel clean and dry, and regularly clean and disinfect the kennel, dog bed, bedding, etc. It is a chronic parasitic skin disease in dogs caused by scabies mites.

Commonly known as epilepsy. Characteristics: Dogs show symptoms of severe itching, hair loss and dermatitis.

[Pathogen] Dog scabies mites of the family Sarcoptidae and genus Sarcoptes. Adult insects are round, yellowish white, with a raised back and a flat abdomen.

Female mites are 0.30-0.45 mm long, and male mites are 0.19-0.23 mm long. The body is divided into two parts. The front end is called the dorsal thorax, which has the first and second pairs of legs. The rear end is called the dorsal abdomen and has the third and fourth pairs of legs. The body surface has fine striations, cones, scales and setae, and a false head. There is a pair of short and thick vertical setae on the back, and a rectangular breastplate on the dorsal chest. The *** is located on the edge of the rear end of the dorsal abdomen.

There are 4 pairs of thick and short legs on the ventral surface of the insect body, and the distance between the front and rear pairs of legs is relatively far. On the 1st, 2nd and 4th pairs of legs of the male.

The female has a sucker on each of its 12 pairs of legs. There is a long seta at the end of the third pair of legs of the male and the third and fourth pairs of legs of the female.

The eggs are oval in shape, with an average size of 150X100 microns. [Life cycle] The development of scabies mites goes through four stages: eggs, larvae, nymphs and adults.

The entire development process is spent in the dog and is usually completed within 1-3 weeks. Scabies mites dig tunnels in the epidermis of the dog's skin, and the females lay eggs in the tunnels. Each female can lay 20-50 eggs in her lifetime.

The eggs hatch into larvae, which have 3 pairs of legs and a body length of 0.11-0.14 mm. The hatched larvae crawl to the surface of the skin, dig small burrows in the skin, and molt into nymphs in the burrows. The nymphs burrow into the skin, dig shallow tunnels, and molt into adults inside.

The life span of the female is about 3-4 weeks, and the male dies after mating. Scabies is most common in winter, late autumn and early spring.

Because there is insufficient light exposure in these seasons, dog hair is dense and long, especially when the kennel environment is not hygienic and humid, which is most suitable for the development and reproduction of mites, and dogs are most susceptible to the disease. [Symptoms] Dog scabies mites are more serious in puppies. They usually start on the head, bridge of nose, eye sockets, ears and chest, and then develop to the trunk and limbs.

At the beginning of the disease, the skin is red with rash-like nodules and a large amount of bran-like dander on the surface. Then the skin thickens, the coat falls off, and the surface is covered with scabs and cracks. The sick dog is severely itchy and scratches and rubs with its hind limbs from time to time. When the skin is scratched or the scab is broken, it may bleed. When there is infection, the affected part may have purulent secretions and a smell.

Due to the long-term and chronic infection of the affected dog's skin by mites, the dog keeps biting, scratching, and rubbing the affected area all day long, making the dog irritable and restless, affecting rest and normal eating. Clinically, it can be seen that the sick dog is losing weight day by day. , Malnutrition, severe cases can lead to death. [Diagnosis] Confirm the diagnosis based on clinical symptoms and laboratory diagnosis.

Use a sterilized surgical blade to scrape the skin at the junction of the diseased skin and healthy skin to get the disease material. Place the disease material on a glass slide, remove 50% glycerin solution, add a cover slip, and place it Diagnosis can be confirmed by seeing live scabies mites under a microscope. [Treatment] (1) Cut off the coat of the affected area and clean the affected area.

(2) Ivermectin (harm-killer) 1% concentration. 0.5-1 mg/.