1, hospitalized for 3 to 5 days after operation; 2, 6 hours after surgery, you can rinse your mouth with mouthwash until the stitches are removed; 3. Within 5 days after operation, the food is mainly liquid food, and spicy food should be avoided as much as possible; 4. The hood must be pressure-packed for 5 to 7 days. If there are no special circumstances, it can't be disassembled halfway. If it is disassembled, it should be bandaged in time. Pay attention to check whether there is broken skin; 6, 3 months after surgery should try to avoid biting hard objects, do not do facial beauty massage, do not rub the mandibular angle operation area.