Summary of Japanese clinical practice guidelines for Bell's palsy (idiopathic facial palsy) - 2023 update edited by the Japan Society of Facial Nerve Research.

These guidelines strongly recommend systemic standard-dose corticosteroids for the clinical management of Bell's palsy. Other treatments are weakly recommended due to insufficient evidence. The absolute risk reduction of each treatment differed according to the disease severity. Therefore, physicians and patients should decide on treatment based on the disease severity.