Although treatment with vasodilators, anticoagulants, low molecular dextran, corticosteroids and vitamins has been recommended, none of them has proven to be effective. Because the inflammatory response caused by the virus is characterized by micro petechiae and extravasation of blood, vasodilators and anticoagulants are not indicated. Furthermore, in the inflammatory response, cochlear blood flow has increased to a favorable degree. The application of corticosteroids seems reasonable, such as prednisone 60 mg/d orally for 2 days, then switching to 40 mg/d orally for 5-7 days and gradually decreasing the dose thereafter. Bed rest is desirable. Usually, if an exolymphatic fistula is suspected, surgical exploration of the middle ear should be performed and the fistula should be repaired with an autologous fascial flap.