What are the precautions for scraping?

　　1. When treating Gua Sha, you should pay attention to keeping warm indoors, especially in winter, you should avoid cold and wind. When scraping in summer, you should avoid blowing the fan directly on the test area.

　　2. Avoid taking cold baths within 30 minutes after scraping.

　　3. It is not advisable to scrape again in the same place to try to remove the sha before the scab spots in the previous scraping area have receded. The time between scraping again needs to be 3-6 days, and the standard is based on the recovery of the skin.

　　4. After scraping, it is best to drink a cup of warm water (preferably light sugar and salt water) and rest for 15-20 minutes.

　　Holographic meridian scraping method

　　Holographic meridian scraping method is developed on the basis of folk scraping method. It is guided by the meridian theory of traditional Chinese medicine and modern biological holographic theory. It chooses to scrape the parts related to the diseased organs to prevent and treat diseases. The emerging holographic meridian scraping method uses microcirculation theory to decipher the essence of "Sha", the relationship between "Sha" and diseases, the causes and effects of "Sha", and elucidates the mechanism of rapid curative effect of scraping therapy in treating painful diseases. It extends the clinical application of scraping therapy from a simple therapeutic effect to disease prevention, health care and diagnostic functions, and improves the efficacy. Its unique diagnostic function can detect latent diseases early, treat them in advance, and eliminate hidden dangers.