Hello, usually the headgear is discontinuous after mandibular angle surgery. Under normal circumstances, it is best not to wear a headgear for several hours at a time, which may easily cause local congestion or even necrosis. You don't need to wear it if you basically feel that your face won't shake with the movement. If your face is still fat and swollen, you'd better stick to it, otherwise it will easily sag and relax, and your skin will not contract muscles and return to normal.