Can scraping (gua sha) treat a cold?
Gua Sha is one of the methods used in Traditional Chinese Medicine (TCM) for treating and preventing diseases. It is often performed on the Bladder Meridian of Foot-Taiyang, which is located on the back of the human body. The Bladder Meridian of Foot-Taiyang is superficial and acts as the first line of defense when external pathogens invade the body. By scraping the Bladder Meridian of Foot-Taiyang, it stimulates the meridians and channels, enhances the body's immunity, and promotes the expulsion of pathogenic factors by strengthening the body’s vital energy. According to TCM, "when the vital energy is preserved within, pathogens cannot interfere." Therefore, scraping the Bladder Meridian of Foot-Taiyang can help in treating and preventing the common cold.