Scraping and cupping are in direct contact with the skin, so they are mainly prohibited for people with skin diseases because they may lead to skin damage. In addition, if the technique is not right, it may also aggravate the condition. 1. Before scraping Gua Sha should check whether there is bleeding tendency, skin alcohol allergy, extreme weakness should not scrape Gua Sha, in addition to pregnant women should not scrape Gua Sha; cupping before the skin should be checked for allergies, ulcers, herpes, etc., in addition to pregnant women’s abdominal and lumbosacral cupping is also prohibited. 2. scraping cupping after the day do not take a bath, drink cold drinks, do not open the air conditioning, fan, etc., so as not to get wind and cold. It should be noted that the patient in the process of gua sha cupping once any discomfort, promptly inform the doctor, do not be negligent, so as not to affect the health.