Hello, the precautions after mandibular surgery are as follows: 1 Do not do facial beauty massage or rub the operating area within three months; 6 hours after operation, rinse your mouth with mouthwash until the stitches are removed; Eat liquid food from the fifth day after operation and try to avoid biting hard objects within three months; Take out stitches 7 days after operation, eat less spicy food and try to eat semi-liquid food.