Put the palm of your right hand on the left side of your neck, draw a big circle backwards and massage this part hard.
Repeat this action 4 times, change your left hand and massage the right side of your neck with the same action.
Small face can be done by taking a bath, because a hot bath can make the whole body sweat a lot, including the face, which can eliminate edema.
Inhale, let your mouth bulge as much as possible, then exhale, inhale again, and repeat several times.
Make a fist with four fingers in one hand, hold your thumb under your ear, and keep your four fingers close to the top edge of your neck. Slide the thumb down hard until the chin is tied, and massage the neck muscles down to the clavicle with four fingers. This can eliminate the fat in this place and improve the muscle shape.