Facial neuritis, also known as idiopathic facial nerve palsy or Bell’s palsy, is an acute onset of facial nerve palsy caused by a non-specific purulent inflammatory reaction of the facial nerve in the stenomastoid foramen. The triggering factors can be wind-cold, viral infection and autonomic instability causing local vasospasm, resulting in nerve ischemia and edema, as well as facial nerve compression resulting in facial nerve paralysis, which in turn manifests the corresponding clinical features. The first symptom of most patients is pain behind the ear or in the mastoid region of the affected side, and most of them present to the doctor with symptoms such as facial distortion, leakage of water from the corner of the mouth, and gagging. Clinical examination: the frontal lines and nasolabial folds on the affected side become shallow or disappear, the eye fissures are enlarged, incompletely closed or cannot be closed, the horns are drooping, the corners of the mouth are tilted to the healthy side when the teeth are exposed, the cheeks are leaking, and the patient is unable to blow a whistle. In order to minimize complications and sequelae, the patient should go to the hospital as soon as possible to take medication and acupuncture treatment (electroacupuncture should not be used in the early stage), together with acupoint injections, and facial functional exercises. During the period of illness (especially in the acute stage), patients must pay attention to rest, not to stay up all night and not to be tired, otherwise it will affect the recovery. Keep the affected side of the face warm, do not use cold water or cold water to wash the face, every night before going to bed with a towel on the affected side of a hot compress for 15-20 minutes, in order to promote the absorption of edema. Do not sleep close to the window, air conditioner or fan to avoid wind and cold stimulation of the affected side and cause cold. For patients with incomplete eyelid closure, apply anti-inflammatory eye drops or ointment before bedtime to avoid conjunctivitis, and pay attention to protect the patient’s eyes during infrared irradiation by covering them with tissue paper or wet gauze to prevent cataracts caused by prolonged irradiation. Drink plenty of water and keep the bowel movement unimpeded. When eating, food often stagnates between the teeth and cheeks on the sick side, patients should be asked to wash their mouths with boiled water frequently, and those who have mouth ulcers, bleeding gums or bad breath should use warm salt water to wash their mouths as appropriate. Eat a light diet, avoiding fatty, spicy, cold, cold, salty and sticky products, and eat more vitamin-rich fruits and vegetables and nutritious food to promote recovery. In addition to acupuncture and medication, the paralyzed facial muscles must be functionally exercised during the recovery period (after 10 days). For those who cannot wrinkle their foreheads with facial paralysis, apply resistance on the forehead during training, push it in the downward and medial directions, and instruct the patients to raise their eyebrows upward and wrinkle their foreheads. This exercise is performed in conjunction with eye opening. Neck stretching enhances this exercise. To train the orbicularis oculi muscles, separate the upper and lower eyelids, apply gentle angular resistance to the eyelids without applying pressure to the eyeballs, and instruct the patient to close the eyes. For perioral training, apply even, gentle resistance inward and downward at the corners of the mouth and instruct the patient to smile.