1. Pre-operative care ① Psychological care Patients with different degrees of facial deformity are prone to inferiority complex, and at the same time, they are worried about the effect of surgery and residual sequelae and have fear. To strengthen psychological care, nurses should take the initiative to communicate with patients to eliminate tension, so that they have a correct understanding of the operation and cooperate with the operation in the best psychological state. ②Perfect preoperative examination preoperative camera, liver function, blood routine, immune routine, coagulation function, blood biochemistry, urine routine, electrocardiogram, etc. ③Bathing, nail clipping, dressing before surgery to avoid getting cold, and female patients should avoid menstruation for surgery. ④Inquire about drug allergy history, past history, and make special markings for those with positive signs. ⑤ Patients with long-term restricted mouth opening and poor oral hygiene, preoperative oral care is especially important. Give mouthwash 3 days before surgery, 3 times a day, and perform periodontal cleaning if necessary. (6) Remove jewelry, denture, contact lenses (contact lenses), etc. on the day of surgery, and give valuables to family members for safekeeping. (7) Enema: the day before the general anesthesia surgery patients enema the evening of the day of the enema, told to eat moderately the night of the enema, avoid too greasy, no more food after the enema, no more water 6h before the operation. ⑧ For patients with mental tension, take oral sedative drugs as prescribed by the doctor to ensure that the patient has a good sleep. ⑨ Do not apply any cosmetics after washing your face in the morning of the operation day. Measure blood pressure and fasting weight in the morning of the operation day. 2.Postoperative care ①Reclining position 6~8h after surgery should be fasting, water fasting, de-pillowing and lying down with head tilted to one side to prevent vomit from entering the respiratory tract and causing mis-aspiration. The position can be changed to semi-recumbent position 6h after anesthesia awakening to reduce head edema. ②Keep the respiratory tract unobstructed. Most of the postoperative patients have different degrees of pain in the throat and sticky sputum, etc. Give patients nebulized inhalation as prescribed by the doctor to improve the symptoms. A small amount of water can be drunk 6h after surgery, and when there is no discomfort, fluid diet such as milk can be drunk. ③Psychological carePatients with obvious postoperative facial swelling should be comforted and given appropriate explanations to make patients understand that postoperative swelling is a normal phenomenon to relieve patients’ anxiety and anxiety. ④Intra-oral wound care was given twice a day after surgery according to medical advice to keep the mouth clean and avoid infection. Follow the patient to rinse the mouth with mouthwash after eating to keep the wound clean. ⑤Treat with antibiotics, hemostatic drugs and vitamin C as prescribed by the doctor to prevent infection and promote wound healing. ⑥Enter liquid diet for one week after surgery, such as milk, juice, soy milk, protein powder, various soups, etc. Push with syringe and avoid sucking. After one week, enter semi-liquid diet, such as egg custard, noodles, congee, ravioli, etc. Enter soft food after two weeks. Rinse your mouth with mouthwash after eating to keep your mouth clean and prevent infection. (7) Drainage tube care Keep the negative pressure drainage device in a negative pressure state, pay attention to the drainage tube do not fold, do not dislodge. When there is a lot of drainage, change the syringe in time and keep records. If it is fresh blood and the amount is large, notify the physician in time; if the drainage tube compresses the corner of the mouth, change the position in time, refix the drainage device, and apply antibiotic ointment to the corner of the mouth to protect the corner of the mouth. ⑧ Head dressing should be removed 3 to 5 days after surgery and the elastic headgear should be changed to reduce swelling and facial relaxation in the operated area. 3. Discharge instruction ①Patients should insist on gargling with mouthwash 4-6 times a day after discharge until 1 week after removal of stitches. 3 weeks later, a soft-bristled toothbrush can be used to brush teeth with gentle movements and avoid touching the wound part. 2 months later, an ordinary toothbrush can be used. ② Swelling, numbness and salivation in the operated area after surgery are normal, and these symptoms will gradually disappear. If the symptoms worsen, contact the doctor promptly. ③After discharge from the hospital, pay attention to keep the wound clean and avoid squeezing and collision. ④After 2 weeks, you can eat soft food. after 4 weeks, you can eat normal food, and forbid to eat too hard food within 3 months. ⑤ Wear elastic headgear for more than 3 months to prevent facial skin relaxation and maintain good postoperative results. ⑥Keep a good mental state and come to the hospital for review after 3 months.