Cupping is a therapy in which a jar is attached to the skin surface to cause local congestion through the negative pressure created by introducing heat or vacuum. Since this method is simple and the therapeutic effect is good, it use has been greatly expanded. This therapy has attracted great attention and is applied to a lot of people. It is also used as an auxiliary method of acupuncture and moxibustion.
The cupping method has the function of warming and promoting the free flow of Qi and blood in the meridians, dispelling cold dampness, diminishing swellings and pains. In clinic, the cupping method is mainly used to treat pain syndrome caused by wind dampness, such as pain of the low back, shoulders, and legs, gastrointestinal disorders such as stomachache, vomiting, and diarrhea, and the lung disease such as cough and asthma. The cupping method, combined with bloodletting, is suitable to treat acute sprains accompanied by blood stasis. The patient should select a comfortable position. Cups in different sizes are used according to the cupping location. Generally, the areas where the muscle is abundant and elastic, free from hair and bone ridges are selected. After cupping, there is a blood stasis or bruise at the local area. Generally, it will disappear after several days. Small blisters occurring on the skin will absorb naturally several days later. If the blisters are severe, draw out the liquid by a sterile syringe, apply gentian violet and cover them with gauze to prevent infection.