Some patients showed symptoms of back pain on the second day after cupping, and careful inquiry revealed that it was skin pain. This is mostly due to the fact that the force of the first day of cupping was too strong, and even on the second day, the skin still feels a little bit hot and sore, or some kind of pain that seems to be twisted, it is recommended not to be afraid, and it is estimated that a little rest will soon pass. The side effects of fire cupping are relatively few, and its contraindications include several conditions, such as skin ulcers, or some blood diseases, such as hemophilia patients, poor coagulation, do not cupping, once there is heavy bleeding, subcutaneous hematoma, and finally need to do surgery to remove. Therefore, it is recommended that the strength of the cupping should not be too large, as to how to judge the size of the strength, you can observe the size of the fire, and the size of the jar is very important, for example, take a small jar, how much gas out of so little space, the negative pressure effect is also relatively small, cupping to the body is not easy to blisters, but the large jar than the fist is also large, like a small bun, this time if you take a large fire to cupping, soon If it is sucked on the body for a little longer, the lighter the pain, the heavier the blisters, and even the skin can be completely scratched away when pulled off. It is generally recommended to be gentle when cupping, slowly wait until you know your own body, cupping to master the fire, and then cupping according to your own summary of experience.