Scraping is through the external force, make the human body blood circulation more smoothly, increase sweat gland secretion, have the benefit of eliminating the body toxin, reduce the burden of the body. However, gua sha still need to take the right way oh, otherwise, scraped no effect not to mention, but also pain it. If there is no Gua Sha board at home, you can use a comb instead, in order to let you suffer less, specifically to find ten tricks to scrape skills.