Sudden deafness is known as sudden onset deafness. In recent years, the incidence of sudden deafness is increasing and tends to be younger, and it is an ear disease that seriously endangers the hearing of healthy people. The onset of sudden deafness is characterized by a sudden onset of sensorineural hearing loss of unknown origin within minutes, hours, or 3 days, with a hearing loss of 20db or more in two connected frequencies, accompanied by tinnitus, ear blockage, vertigo, nausea and vomiting. Sudden deafness is diagnosed when the above clinical manifestations are present. The earlier the treatment, the better the effect. We advocate hospitalization, which has several advantages: 1) the patient can get sufficient rest, which is good for hearing recovery. 2. Systematic medication can be administered. 3, can be carried out at the same time in many aspects of comprehensive treatment (including hyperbaric oxygen, mixed oxygen, acoustic information, etc.) to improve the effectiveness. 4.It is easy to observe the therapeutic effect and adjust the treatment plan in time. If the patient does have special reasons for not being able to be hospitalized, he/she must also receive the therapeutic effect strictly according to the standard outpatient treatment as prescribed by the doctor. The effect of treatment for sudden deafness depends largely on the patient’s awareness and attitude towards the disease, and most of them can be cured or improved if they can cooperate with the doctor in time and actively. If the disease is not treated, it can lead to permanent hearing loss or even total deafness. Therefore, for patients who suffer from sudden deafness, most of them can recover or improve their hearing as long as they are diagnosed early, treated in time, have confidence, are patient enough and actively cooperate with the treatment.