The role of fire cupping is to open the couper (open the pores of the skin), activate the meridians and channels (dredge the meridians and channels), extract poison and suction pus as well as dispelling the wind and dispersing the cold (dispelling the wind and dispersing the cold), and so on. 1. Open the coupling: the vacuum negative pressure produced by cupping has a strong suction and extraction force, which can make the local skin pores open, with the effect of removing the body’s evil qi. 2. Activate meridians and channels: cupping can play the role of activating meridians and channels, such as cupping on both sides of the foot solar bladder meridian in the back, can make the meridians and channels open, so that qi and blood can run. 3. Cupping and absorbing pus: for some insect bites, boils, furuncles (mostly occurring in the limbs or facial sores, the shape of a small root deep, such as nails as hard), some surgical diseases can be cupped through the method, the evil poisons will be discharged from the body. 4. Dispel wind and disperse cold: Cupping has a certain warming effect, for some internal diseases such as cold, facial paralysis, cough, etc. caused by feeling wind and cold, through the method of cupping to dispel wind and disperse cold, so as to achieve the purpose of preventing and treating diseases. The specific operation of cupping needs to be carried out by a professional doctor, and should not be operated blindly by oneself to avoid adverse consequences.