A necrotic facial nerve is generally not recoverable. It is generally difficult to recover from necrosis of the facial nerve because necrosis of the facial nerve will cause the axon and myelin sheaths of the nerve fibers to become detached and necrotic, and will also cause the muscles innervated by the nerve to lose function. The axon of the nerve grows back slowly, and the myelin sheath at the distal end of the nerve closes before it returns to normal, so the facial nerve cannot continue to grow, therefore, it is often impossible to recover from facial nerve necrosis. According to the condition of some patients with facial nerve necrosis, hot towels can be used to apply hot compresses to the local area to promote the blood supply of the local necrotic nerve, which can reduce muscle atrophy and other conditions. Facial nerve necrosis patients, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease, targeted treatment.