I can’t hear well in my left ear when I wake up in the morning. Consider sudden deafness. Sudden deafness is a sudden onset of hearing loss accompanied by tinnitus and vertigo. The causes of sudden deafness are generally classified as viral factors and vasospasm, so treatment is mostly given as vasodilatation and hormone-based treatment, which can be supplemented with hyperbaric oxygen and other treatments. The treatment of sudden deafness is related to the time of consultation after the onset of the disease, and the earlier the treatment, the better the results. It is also related to the type of sudden deafness, and the effect is better in ascending type and worse in total deafness type. 10 days is a course of treatment, and most of them can be cured in one course of treatment, usually not more than three courses of treatment. Therefore, for the treatment of sudden deafness, the earlier the treatment, the better the result.