Metal allergy:
One in every 6,543.8+million people in the world is allergic to metals. The most common allergic metal is nickel, and jewelry is also the main source of allergies. Once an allergy occurs, it will cause contact dermatitis such as redness, itching and yellow water flowing around. In daily life, many alloy products contain nickel. Such as coins, various alloy products, electroplated materials, spectacle frames, metal watchbands, belt buckles, artificial jewelry, underwear buckles, etc. Direct contact with the skin can make sensitive people allergic. Chromium, mercury, gold, platinum and barium can also cause allergic reactions, such as dampness and anaphylactic shock, which are all adverse reactions caused by the release of metal ions. Perforation is a kind of trauma to human body. Putting metal foreign bodies that do not belong to human tissue into the wound site will cause continuous stimulation to the human body, make the perforation site thicker, the tissue may proliferate and appear tumor-like processes, and even become cancerous in severe cases. Perforation of nerve endings such as nose, lips and tongue with ornaments will affect the function of organs to some extent.
Allergic symptoms:
When wearing earrings, the earlobe will be red and swollen, and even soup will flow. Some people wear watches and have itchy rashes on their wrists. Others wear glasses, and the parts of the frame that touch the skin will break out in a rash and peel off. These are typical metal allergies.
Nickel is the metal most likely to cause allergic contact dermatitis. Whether you are allergic to nickel depends mainly on your constitution. Allergic reactions often show up after exposure for a period of time. The most common phenomenon is that skin will sweat when it comes into contact with nickel-containing metals, which will release nickel salts in metals, thus causing allergic inflammation of the skin. Common eczema reactions around navel are mostly contact dermatitis caused by metal buckles on trousers or belts.
Allergen:
Common metal products that can cause skin allergy are: hair clips, earrings, zippers, necklaces, spectacle frames, watches, belt buckles, buttons, scissors, nickels and so on. If you suspect that you may be allergic to metals, you can ask a dermatologist to do a patch test to determine whether you should avoid contact with nickel-containing products. In addition, some foods also contain trace amounts of nickel. If you are allergic to nickel, avoid eating it. These foods include oysters, asparagus, mushrooms, onions, spinach, tomatoes, corn, peanuts, cocoa, chocolate, tea, canned food and acidic food cooked in stainless steel containers.
How to deal with allergies:
1. Jewelry processing:
There are two kinds of silver ornaments on the market at present. One is very cheap silver-plated jewelry, which is very easy to cause allergies after the silver-plated layer falls off. The other is 925 silver, which contains more than 92.5% silver, so most people are not allergic to silver, while the other 7.5% alloy contains copper and zinc, which may cause allergies, even if it contains chromium and nickel, it is easy to cause skin diseases.
Pay special attention to jewelry that needs to be perforated, such as earrings, and try to buy jewelry with high precious metal content, such as pure gold, PT950, Pd 950 and Pd 990. People are generally not allergic to these metals. If you are allergic, try not to wear jewelry that pierces the skin. If you are allergic, you can buy silver-plated or nickel-containing silver ornaments. It is suggested to go to the National Quality Inspection Center for Gold and Diamond Products to detect the content of precious metals. If the nickel content exceeds the national standard and is harmful to human body, you should give up wearing it. In addition, I would like to remind you that you sweat a lot in summer, and jewelry should be cleaned frequently, especially before wearing earrings, which should be soaked in alcohol for disinfection.
2. Tetracycline can cure metal allergy.
At present, allergic reactions caused by ornaments, trinkets, bone nails, metal trays, cookers, tableware and foods containing metals are not uncommon. People's understanding of allergic diseases is not comprehensive, and it is considered that the substances that cause allergic reactions are mainly biological and drug allergens, while metals seem to have nothing to do with allergies. Metal looks hard and dense, so it can't enter the human body. In fact, long-term contact with some metals can also be slowly absorbed to sensitize the human body, and then contact with the same metal after sensitization will cause allergic reactions. Moreover, drinks and food also contain various metal components, and people who are allergic to the constitution will also be sensitized after entering the human body. People can't live without metals for a day, but metals also have various adverse effects on people, and allergic reactions are one of them. Motz. Denmark's H.G et al. published that most of the alloys contain metallic nickel, among which 13.7% are girls and 2.5% are boys, and most of them are related to dental metal appliances or metal trinkets.
Metal allergy can occur locally on the skin, causing allergic contact dermatitis and systemic allergic dermatitis. Therefore, in case of unexplained dermatitis, you must go to a conditional hospital to determine which metal you are allergic to through the patch test of metal, and then study the way of metal entering the body. If you can stop it from entering again, the allergic reaction will not happen again. But it is often difficult to complete this process, so it is often incurable for a long time. Before, there was no other treatment except avoiding contact with metal allergens, and there was no drug treatment. In recent years, studies have proved that tetracycline can form insoluble chelates with free metals, thus preventing its absorption and avoiding allergic reactions. The specific method is to take 200 mg minocycline orally every day, which can obviously reduce the occurrence of metal skin allergy. Therefore, when there is metal allergy, it is difficult to determine the allergen for a while, and the symptoms have not improved. Try it.
Conclusion:
Dealing with contact dermatitis and allergies caused by metals is mainly to avoid contact, especially in summer when sweating is more. If there is allergic phenomenon, the situation is mild, you can apply hormone ointment to treat it yourself, but if the situation is serious, you should go to the hospital in time. Allergy cannot be completely cured, because the cause of allergic diseases is very complicated, which is related to personal physique and has many inducing factors. It may recur, or it may not recur after recovery.