Benefits: It can excrete body moisture and cold. The meridians and acupoints of the body are connected with the internal organs in the same way. Through external suction, the acupoints on the body surface will be stimulated, so that the human organs can be adjusted accordingly, and the qi and blood will be smooth < P > Disadvantages: cupping will make the skin very bad and cause infection < P > For patients with inflammation or bloody diseases, cupping is not only helpless, but even more destructive.