1? A small flying insect crawled into the left ear of Mao Weiguo's little grandson who was sleeping;

2? The little grandson woke up and dug his left ear with his hand and cried;

3? When Mao Weiguo arrived, he puffed his cheeks and blew into his right ear hole.

4? As soon as the parents heard that the worm had crawled into their ears, they immediately pushed their bicycles to take their children to the hospital.

A small flying insect crawled into Mao Weiguo's grandson's left ear, and many "emergency doctors" gave them methods to deal with foreign bodies in the external auditory canal. ...

What is a foreign body in the external auditory canal? It can be divided into three parts: inner ear, middle ear and outer ear. The external ear includes auricle and external auditory canal. The external auditory canal starts from the cavity bottom of the auricle and ends at the tympanic membrane. The eardrum separates the external auditory canal from the middle ear like a curtain inclined forward and downward. If the eardrum is intact and undamaged, foreign bodies generally cannot enter the middle and inner ears. The length of external ear is about 2? 5~3? 5 cm, longer for adults and shorter for children, is an oval curved blind tube (one end of the tube is the tympanic membrane), and there is a narrow place near the tympanic membrane called the external auditory canal gorge. The external auditory canal, a special structure, can prevent foreign bodies from going deep into the eardrum and directly hurting it. But it has an outward and unobstructed opening, so it is still the place where foreign bodies are most likely to remain in the human body. When insects climb into the external auditory canal or other objects enter and stay in the external auditory canal, they become foreign bodies in the external auditory canal. There are three reasons that usually cause foreign bodies in the external auditory canal:

1. Non-animal foreign bodies in the external auditory canal caused by putting some small items, such as beans, rice, beads, pebbles or small paper balls, into the external auditory canal belong to foreign bodies that passively enter the external auditory canal;

Second, the animal foreign bodies in the external auditory canal caused by mosquitoes, flies, ants, cockroaches and other insects crawling into the external auditory canal belong to foreign bodies that actively enter the external auditory canal;

Third, the cotton ball left by the medical staff carelessly caused iatrogenic foreign bodies in the external auditory canal.

The symptoms of foreign bodies in external auditory canal are small and non-irritating. Foreign bodies in the external auditory canal that do not involve the tympanic membrane are generally asymptomatic and are often found during physical examination of the external auditory canal. Large foreign bodies can cause hearing impairment, tinnitus, earache, reflex cough, etc. If a foreign body touches the eardrum, it will cause dizziness. Some plant seeds enter the external auditory canal, which is small and asymptomatic. Later, because of water absorption, the seeds expanded in volume and even germinated and grew, and the symptoms gradually worsened. Sharp foreign bodies, especially insect bites, can cause unbearable pain, tinnitus and even bleeding due to damage to the skin of external auditory canal or tympanic membrane. This foreign body in the external auditory canal often causes patients with earache and suddenly wakes up from sleep. When the child wakes up, he will cry and dig the worm's ear canal with his little hand, just like Mao Weiguo's little grandson in this case. Are people's ears connected? Case introduction "Mao Weiguo quickly picked up his little grandson and puffed up his cheeks and blew into the child's right ear hole. He heard that people's ears are connected, and he hoped to blow out the bugs in the child's left ear canal. "

There are three opinions on this in the reader's letter:

One is that "people's ears are not connected, so it is impossible for Mao Weiguo to blow out the bugs in his grandson's left ear from his right ear"; Another opinion is that "people are connected with each other, and Mao Weiguo's approach may succeed"; Another opinion is that "people's ears are indeed connected, but Mao Weiguo's approach is wrong." Obviously, all three viewpoints are wrong or the analysis is not correct enough. In fact, people's ears are not directly connected, and the middle ears on both sides lead to a nasopharyngeal cavity through a very thin tube-eustachian tube. Under normal circumstances, the eustachian tube is closed, and it can only be opened when swallowing or opening the mouth. At this time, the outside air communicates with the middle ear air to achieve the purpose of balancing the middle ear pressure. Even if the eardrum is broken, it is impossible for air to blow into the external auditory canal through the mouth and pass through the eustachian tube, let alone reach the opposite ear. On-site first aid is very expensive. In a quick and effective case, it was said that "the child's shrill cry alarmed Mao Weiguo's daughter and son-in-law." As soon as they heard that the worm had crawled into the child's ear, they immediately pushed the bicycle and sent the child to the town hospital for treatment. " A group of readers from Zhabei District, Heyang County, Shaanxi Province, Wu from Heyuan City, Guangdong Province, and Bi Zuomo from Zibo City, Shandong Province put forward pertinent opinions: "It is right for the child to be sent to the hospital for emergency treatment immediately; But it depends on the specific situation, whether it is necessary to deal with it on the spot first. " "On-site processing is fast and effective." "There are roughly three situations in which you are not in a hurry to go to the hospital: First, those who are in a critical situation and should not be moved should be treated urgently at the scene and sent to the hospital by an ambulance with stable condition or adequate equipment; Second, the journey to the hospital is too long, and there is no suitable means of transportation. Going on the road urgently without first treatment will only delay the chance of rescue; Third, it is possible to deal with it on the spot. On-site treatment can reduce the pain of patients, saving time, effort and money. " "Like wei-guo MAO's grandson, climbed into the worm, in the mountains far from the hospital. The means of transportation is just a bicycle, and it is more reasonable to treat it on the spot than to send it to the hospital. " Key points of on-site treatment: Xu Chunshuang from Xi, Shaanxi, Wu Bin from xingning city, Guangdong, and Yang Jingnuo from jimo city, Shandong, etc. pointed out that once a foreign body enters the external auditory canal, it must be calm, don't panic, and observe what foreign body it is before handling it accordingly.

1? Insects: Many readers suggest putting lights at the mouth of the external auditory canal to lure insects out. This method can be tried. However, it is better to drop sesame oil and ether. First, make insects get stuck or anesthetized and lose their mobility, so as not to damage the external auditory canal and tympanic membrane, or wash them with warm water faster and more appropriately;

2? Seeds of plants such as beans can be shrunk by dropping 95% alcohol first, and then pulled out or pulled out (this foreign body should not be dropped or washed with water, because the seeds will swell after soaking in water and get stuck in the external auditory canal);

3? The mud is inconvenient to take out, so it can be washed with warm water. However, it should be noted that if there is a history of tympanic membrane perforation otitis media, it should not be washed, and it can be carefully dug out with an ear pick.

4? Paper balls, cotton balls or flat or strip foreign bodies can be taken out directly with tweezers;

5? Smooth foreign objects use hooks to bypass the foreign objects through the gaps around them, and then clamp the foreign objects to hook them out, instead of using clips or tweezers, so as not to push the foreign objects deeper. After the foreign body is taken out, if the external auditory canal is damaged, disinfection, external use and oral antibiotics should be carried out until the wound heals. What needs to be emphasized here is that the self-treatment of foreign bodies in the external auditory canal must be carried out in a bright field of vision, and some deep foreign bodies cannot be dug up blindly. If it cannot be treated on the spot or after treatment, it should be checked in the hospital to determine whether the foreign body has been completely removed; Patients with a history of otitis media or tympanic membrane injury, it is best not to infuse liquid into the ear canal to avoid inducing more serious infection.