Hyperbaric oxygen can treat sudden deafness, usually in the presence of sudden deafness, the clinical use of hyperbaric oxygen, once a day, 2 hours a day, the treatment of sudden deafness, at the same time, patients need to cooperate with the static point to improve the blood supply of the inner ear and neurotrophic drugs, the course of treatment for 2 weeks. The most common clinical causes of sudden deafness are fatigue, anxiety, anxiety, fire, etc., which cause insufficient blood supply to the auditory artery in the inner ear, and then lead to the decline of the inner ear cochlear hair cell function, and the specific root cause is due to the lack of local oxygen. Hyperbaric oxygen therapy is the inhalation of pure oxygen under atmospheric pressure to increase the oxygen content of the blood in the patient’s body cells, thus increasing the regenerative capacity of the inner ear cochlear hair cells.