Cupping experts believe that some people will have blisters on their skin when they accept cupping, and cupping for too long is a factor leading to cupping blisters. But at the same cupping time, some people bubble, while others don't, which is related to individual differences and parts. Generally, there are several situations: the front chest is easier to bubble than the back, the thin white skin is easier to bubble than the thick black skin, and the summer is easier to bubble than other seasons; Some special constitutions, such as humidity, are easy to bubble even if they are put in a jar for a short time; Cupping in the same place several times in a row is easy to bubble on the original arc of the can mouth; Cupping is easy to blister in plaster, topical drugs for promoting blood circulation and relieving pain, hot compress, infrared radiation, electrotherapy and drug penetration.
For most patients, bubbling after cupping is much more effective than not bubbling, which can shorten the course of disease and improve the curative effect.
Chinese medicine has a foaming therapy called "Tianjiu". It is to apply some drugs to the corresponding skin to make it blister, then puncture the blisters and release bubble liquid to relieve the pain. Studies have shown that foaming moxibustion can improve the immunity and strengthen the body. The blistering after cupping may also be through cupping, which sucks the tissue fluid in the diseased soft tissue, even a small amount of blood, to the epidermis to relieve or relieve the pain directly.