Facial nerve paralysis triggered by inflammation and other causes of facial nerve paralysis, after the lesion occurs itself has the ability of nerve repair, therefore, facial neuritis has a certain degree of self-limitation, can be self-healing, but the ability of self-healing according to the physical quality of each individual as well as the degree of the disease there are obvious differences. Most patients begin to recover 2-4 weeks after the onset of the disease and fully recover after 3-4 months. In patients with complete paralysis of the facial muscles, even if they do not receive any treatment, 70% still recover completely even 6 months after the onset of the disease. Factors affecting recovery from facial neuritis depend largely on the severity of the condition and whether treatment is prompt and appropriate. Younger patients have a better prognosis. The recovery rate for milder cases of facial palsy is more than 92%, with or without treatment. Elderly patients with onset of mastoid pain, diabetes, hypertension, atherosclerosis, angina pectoris, or a history of myocardial infarction have a poorer prognosis; objective prognosis can be determined by electromyography and electrical excitability testing, which can be performed two weeks after onset of the disease. Therefore, although facial neuritis is self-healing, it should be treated early to promote the local inflammation and edema to subside as soon as possible, and to promote the recovery of neurological function, so as to reduce complications and sequelae.