Usually, whenever surgery is performed, you need to avoid the physiological period. The surgeon will determine if the surgery is safe to perform based on the candidate’s pre-operative examination. Patients should also inform the doctor of any other surgeries they have undergone to avoid scarring or tissue from other surgeries, and patients who need this surgery are advised not to undergo invasive facial plastic surgery for six months. After the osteotomy, since the wound is inside the mouth, you need to rinse your mouth frequently to keep it clean, preferably using mouthwash with antiseptic effect. It is best to use an antiseptic mouthwash. You should also rinse your mouth before and after eating. When rinsing, it is important to note that you should not use the usual method of rinsing by puffing hard, as this will cause the liquid to enter the wound and increase the chance of infection. Simply gargle gently and allow the antiseptic liquid to swish around the wound surface. Since the surgery involves stripping away some of the muscles attached to the face, chewing hard in the early postoperative period may also cause pain or even bleeding at the fracture end, thus affecting the healing process. Therefore, it is recommended that the patient should eat a liquid diet within 3 days after the operation (and pay attention to the temperature of the food should not be too high), soft food within 1 week, and avoid hard food and strenuous activities within 1 month. At the same time, this surgery requires stripping of muscle and bone amputation, which requires a longer recovery time, but most patients can lose about 80% of the swelling in about 2 weeks, and more than 90% of the swelling in 1 month, and the fracture end will take about 3 months to be fully shaped.