The prognosis of facial neuritis can be determined clinically based on experience and electromyography: 1. Incomplete facial palsy can start to recover 1-3 weeks after the onset of the disease and can be expected to recover significantly and gradually heal within 1-2 months. Younger patients have a better prognosis. The healing rate of milder facial palsy can reach more than 92% regardless of treatment. The prognosis is better for those who have a history of cold and the stapedius muscle reflex still exists after 4 days of facial paralysis. 3. The prognosis of elderly patients with papillary pain at the onset, diabetes, hypertension, atherosclerosis, angina pectoris or previous history of myocardial infarction is poor. If the M-wave amplitude of the evoked electromyographic action potential on the affected side is 30% or more of that on the healthy side, recovery is expected within 2 months; if it is 10%-30%, recovery often takes 2-8 months, and comorbidity may occur; if it is only 10% or less, recovery takes 6-12 months. It takes 6-12 months to recover and is mostly accompanied by facial muscle spasm and joint band movement and other comorbidities. 5. If the facial nerve loses nerve potential 10 days after the disease, the recovery time will be prolonged, taking an average of 3 months.