1. If patients are scraping indoor, we should pay attention to keep warm, especially in the winter to avoid getting cold.

2. You must clean the skin before scraping, and the strigil must be disinfected.

3. When scraping, force of scraping must be moderate, not too strong or fierce.

4. You should select acupoints according to meridian; each site should be scraped in 1-5 minutes. If fail to scrap Sha, do not force it out.

5. The sufferers had better to drink a cup of boiled water after scraping so as to supply the body fluids and to improve qi and blood circulation and metabolism. Especially, you should pay more attention to those who are more serious, those who need surgery, and those who have serious heart disease. They are not allowed to be scraped.

If the skin is damaged or burnt, do not scrap on it. Those who are stimulating, too full, do not be scraped, as well as those who stop exercise just a moment.