Acute otitis media is an acute suppurative inflammation of the middle ear mucosa, which is most commonly infected by eustachian tube. After a cold, the inflammation of the pharynx and nose spread to the eustachian tube, and the pharyngeal orifice and lumen mucosa of the eustachian tube were congested and swollen, and cilia movement was hindered, and pathogenic bacteria invaded the middle ear, causing otitis media. The common pathogens are pneumococcus and Haemophilus influenzae, so preventing colds can reduce the chance of otitis media. Improper method of blowing nose can also lead to otitis media. When some people blow their noses, they often pinch their noses with two fingers and blow them out hard. This method of blowing your nose is not only unable to completely blow out your nose, but also very dangerous. Your nose contains a lot of viruses and bacteria. If you pinch your nostrils and blow hard, the pressure will force your nose to squeeze out of the posterior nasal orifice and reach the eustachian tube, causing otitis media. Therefore, we should advocate the correct method of blowing your nose: hold one nostril with your fingers, blow out the nose of the opposite nostril with a little force, and blow the other side with the same method. If the nasal cavity is blocked and it is not easy to blow out the nose, you can first use chlorine hemp nasal drops to drop the nose and wait until the nasal cavity is ventilated before blowing. To treat chronic otitis media, you should avoid swallowing water when swimming, so as to avoid water entering the middle ear through the nasopharynx and causing otitis media. It is forbidden to drip any watery liquid into tympanic membrane perforation caused by trauma, so as not to affect the healing of the wound. Sterile cotton balls can be used to block the external auditory canal to avoid infection and otitis media. If the infant suckles in supine position, because the eustachian tube of the infant is relatively straight, and the lumen is short and the inner diameter is wide, the milk can choke into the middle ear through the eustachian tube and cause otitis media. Therefore, mothers should take a sitting position when feeding their children, hold the baby in an oblique position and suck the milk vertically. In addition, smoking cigarettes, including secondhand smoke, can also cause otitis media. Smoking can cause systemic arteriosclerosis, especially nicotine in cigarettes enters the blood, which makes small blood vessels spasm and viscosity increase, and the arterioles that supply blood to the inner ear harden, resulting in insufficient blood supply to the inner ear and seriously affecting hearing. Cigarettes will not only cause otitis media, but also aggravate the condition of otitis media. In severe cases, patients with otitis media will be permanently deaf. At the same time, NNK, a strong carcinogen in cigarettes, will cause malignant lesions of otitis media, seriously affect the impulse nerve, cause long-term head pain and frequent dizziness, and cause hemiplegia. Therefore, if there are infants and patients with otitis media in the family, they should not smoke cigarettes and try not to be exposed to second-hand smoke. There is also a long time to listen to rock music with headphones. If it takes a long time, it is easy to cause chronic otitis media, causing tissue damage to the ears, severe hearing loss and other complications, such as otitis media.