Onion is a food and has no therapeutic effect on deafness. Deafness can be categorized into congenital deafness and acquired deafness (e.g. otitis media, idiopathic sudden deafness, acoustic neuroma, etc.), and different types are treated in different ways. It is recommended to be treated by medication and surgery under the guidance of an ear, nose and throat (ENT) doctor. 1. Congenital deafness: mainly manifested as the newborn’s slow response to sound or no response, early failure to diagnose or treat the child, aphasia can occur. After diagnosis, hearing can be improved by cochlear implantation or wearing hearing aids. 2. Otitis media: The main manifestations are deafness, ear pain and tinnitus. Amoxicillin, cefuroxime and other drugs can be used to control the infection, and patients with a history of drug allergy are prohibited. 3. Idiopathic sudden deafness: mainly manifested as deafness, can be accompanied by dizziness, tinnitus, ear blockage and other symptoms. Nutritional nerve, improve microcirculation and other treatments can be used as prescribed by the doctor. 4. Auditory neuroma: mainly manifested as dizziness, tinnitus, unsteady walking, nausea, etc., and some patients may also have deafness. The tumor can be removed by suboccipital approach, transvaginal approach and other surgeries under the doctor’s advice. There are many other causes of deafness, and it is recommended that patients with deafness go to the hospital in a timely manner, after clarifying the cause of the disease, and follow the doctor’s instructions to standardize the treatment. In daily life, we need to eat a light diet, prevent colds, and pay attention to ear hygiene.