The correct usage of the scraping board is as follows:

1, the scraping board is divided into thin side, thick side and angular. When treating diseases, use thin surfaces to scrape the skin, health care to use thick sides to scrape the skin, and apply angular scraping when you need to tap acupuncture points.
2, in gua sha, the gua sha board should be at an angle of 60 ° or 90 ° to human skin, and the gua sha board should be coated with medium first when gua sha, reduce the friction between the gua sha board and the skin, reduce the damage to the skin, and can enhance the penetration and increase the therapeutic effect.
3. When scraping, hold the scraping board in your hand, center on a point, and try to expand its range to the periphery. The direction of gua sha is generally the neck, back, abdomen, upper limbs, lower limbs, etc., from top to bottom, from the inside to the outside.