“…Facial nerve palsy (FNP) is a common disorder with many etiologies including idiopathic, infectious, neoplastic, congenital, neurogenic, traumatic, and toxic 46–48 . Facial nerve palsy significantly affects the quality of life of patients because the mimetic muscles are important for a variety of functions 49–51 . Furthermore, FNP not only causes functional disabilities such as eye closure, speech, and drinking, but also causes significant facial asymmetry, resulting in immeasurable psychological distress for patients.…”