Fire cupping is to use the heat of the burning flame to remove the air inside the jar, so that the negative pressure inside the jar will be sucked and cupped on the skin, fire cupping can unblock the meridians, blood circulation and pain, commonly used two kinds of cast fire method and flash fire method. The fire throwing method is to use a small strip of paper to ignite and then put it into the jar, and quickly suck the jar on the part that should be cupped. The flash fire method is to use a long strip of paper or tweezers to hold an alcohol cotton ball, ignite it and then circle it around the jar and then pull it out, and quickly suck the jar on the part that should be cupped. Before cupping, you should choose the right position and size of the cupping jar, and leave the jar for 10-15 minutes each time, too long to easily localize blisters.