Facial neuritis is a relatively common disease in neurology. It is mainly caused by viral infection or other nonspecific inflammatory reactions, leading to local inflammation of the facial nerve, which results in edema of the facial nerve and clinical manifestations caused by compression within the facial nerve canal. The main symptoms include shallower furrows on the affected side of the forehead, weakness in opening and closing the eyes, drooping and skewing of the mouth corner, drooling, weakness in puffing the cheeks, and air leakage when puffing the cheeks. Most patients with facial neuritis have a good prognosis, as long as the diagnosis is clear and appropriate treatment is administered in a timely manner, such as treatment with corticosteroids and B vitamins. If it is caused by a viral infection, appropriate antiviral treatment is given, and most patients can fully recover in about three months. If the condition is severe at the onset, or if the patient has risk factors such as diabetes, the prognosis is not very good. Overall, most people with facial neuritis recover well.