Ear is an auditory organ, which can distinguish various sounds in nature and maintain the balance of the body. According to the theory of traditional Chinese medicine, the kidney opens to the ear, so the hearing function of the ear is closely related to the rise and fall of kidney essence. If the kidney essence is sufficient and the bone marrow is nourished, the hearing function of the ear will be normal. If people's kidneys are deficient in essence and their bone marrow is empty, their hearing will be impaired, or they will suffer from tinnitus and deafness, so Chinese medicine uses the method of tonifying kidney to treat ear dysfunction.

Ear health care methods in daily life: we should pay attention to regulating emotions, keep a good mood, give priority to light diet and protect the function of ears. In the living and working environment, avoid or reduce the noise damage to the ears as much as possible, and the noise in the surrounding environment should not exceed 65 decibels. If you work in an environment where the noise exceeds 65 decibels, you should take appropriate measures (such as wearing earplugs or earmuffs) to protect your hearing, otherwise it will cause permanent hearing loss. When bathing or swimming, pay attention to prevent sewage from entering the ear canal, so as not to induce ear canal infection. If sewage enters the ear canal, dry it with sterile cotton swab and disinfect it with a little alcohol if necessary. Try not to dig ear wax, because ear wax has a protective effect on the ear canal and can be discharged by itself. If the earwax blocks the ear canal too much, please see an otologist for examination and treatment.