Scraping has a certain effect of removing dampness, but the exact effect varies from person to person. Gua Sha is a porcelain or coin with smooth edges, dipped in vegetable oil or warm water to scrape the neck, shoulder blades, back or intercostals, etc., from top to bottom, from the inside to the outside of the repeated several times, to the skin appears purple red until. Gua sha therapy can be used for internal, external, gynecological, pediatric, five senses and other various diseases, such as colds, bronchitis, hiccups (hiccups), vomiting, constipation, diarrhea, urinary tract infections, vertigo, insomnia, headache, pillow, acute lumbar sprains, menstrual cramps, fever during menstruation, acute mastitis, heatstroke and so on. For those who have serious cardiovascular and cerebrovascular diseases, liver and kidney insufficiency, generalized swelling, extreme weakness or emaciation, as well as thrombocytopenic disease, anaphylactic purpura, leukemia and other people with bleeding tendency, should be prohibited from using this method. If you need gua sha treatment, it is recommended to go to a professional medical institution.