Facial neuritis, also known as facial nerve palsy or Bell’s palsy, is the most common facial nerve disorder. Facial neuritis is a peripheral facial paralysis, which is fundamentally different from central facial paralysis caused by stroke, and are two separate diseases. The incidence of this disease is similar in men and women, and it can occur at any age with no obvious seasonality. Facial neuritis triggering factors can be wind-cold, viral infection, autonomic instability, facial nerve trophic vasospasm resulting in nerve ischemia and edema can also lead to facial nerve paralysis. The main clinical manifestations of facial neuritis are: 1, the disease usually acute onset, about half of the patients within 48 hours to reach a more serious degree, almost all patients within 5 days to reach the most serious degree of the disease. The main manifestations are paralysis of the facial muscles on the affected side, disappearance of the forehead lines, inability to wrinkle the forehead, eyelids can not be completely closed; the affected side of the nasolabial folds become shallow, the corners of the mouth drooped, teeth bared when the corners of the mouth biased towards the healthy side, drumming or whistling leakage, food stagnation in the affected side of the teeth and cheeks when eating. 2.Part of the patients will have abnormal sense of taste, mainly manifested as the loss of taste in front of the tongue and tasteless eating; some patients combined with auditory hypersensitivity; some other patients have pain behind the ear on the affected side during the course of the disease, and loss of sensation in the auricle and external auditory canal. If herpes appears in the external auditory canal or tympanic membrane, it is called Hunt’s syndrome. Is facial neuritis serious? Can it be completely cured? Facial neuritis is not a serious disease in itself, and will not affect the subsequent health and life of a person, but if the treatment is not timely, leaving sequelae, the face will not be able to get through (crooked mouth and eyes, the image of the big loss). Most of facial neuritis can be recovered, according to statistics, about 80% of patients can be recovered in a few weeks or 1-2 months, taste often precedes the recovery of facial muscle motor function, taste recovery within 1 week suggests a good prognosis. Incomplete facial paralysis is usually expected to recover in 1-2 months. Younger patients recover faster and have a better prognosis than older patients. If the onset of the disease is accompanied by pain behind the ear in elderly patients, the combination of hypertension, diabetes mellitus, atherosclerosis and other chronic diseases suggests a poor prognosis. Hunt’s syndrome due to viral infection is relatively slow to recover and has a poor prognosis, with a significant number of these patients having sequelae. Electromyography can help to predict recovery, with loss of nerve potentials on electromyography around 10 days after the onset of the disease usually taking 3 months to recover. In complete facial paralysis, nerve conduction velocity is usually checked 1 week after the disease to help determine the prognosis, so it is important to actively improve the above neurophysiological examination.