1) For the back: First, use the concave surface from top to bottom in the same direction each time. Then use the convex surface to scrape the spine.
2) For the abdomen: Take the navel as the center, and massage from top to bottom; the intensity is even, and you do not have to use too much force; ruddy is very good. Generally, adhere to three days a week; constipation can be improved.
3) For the legs: Starting from the knee, down, only in the same direction each time (if there are varicose veins or edema in the lower extremities, you must go from bottom to top to improve blood circulation)
4) For the shoulder and neck: From top to bottom, the action frequency should be slow and consistent, not too fast, and the force should be manageable. The gentle movement can help the flow of lymph, and relieve the lack of blood supply to the head, shoulder and neck obstruction, etc., problem.