Most of the otitis externa hearing loss can be recovered after standardized treatment, usually takes about two weeks. It is recommended to use medication under the guidance of a doctor, as each patient’s condition is different, and specific programs need to be developed according to the condition. The external ear canal is often due to the entry of sewage into the ear canal or due to damage to the skin in the external ear canal, resulting in bacterial or viral infections caused by inflammation of the tract ear canal. The main symptom is the pulling pain of the auricle, the redness and swelling of the ear is more obvious, some patients also have tinnitus, hearing loss. After standardized treatment, the inflammation is controlled and the hearing loss will gradually recover. Treatment of otitis externa is mainly the use of antibiotics, common cephalosporin antibiotics (such as cefuroxime, cefixime, cefdinir, etc.), with sterilization ear drops for treatment, common levofloxacin ear drops, active use of medication will basically be restored hearing. Some necrotizing otitis externa develops rapidly and dangerously, and requires high attention, and should be examined and treated by a specialist in a timely and standardized diagnosis and treatment.