Blisters from cupping can be caused by leaving the cupping too long, too much pressure inside the cupping, or too high a temperature at the mouth of the cupping. When the cupping time is too long or the pressure inside the cupping jar is too high, it will cause the tissue fluid to be adsorbed under the skin, and blisters may appear at this time. When the temperature of the mouth of the cupping jar is too high, it can lead to scalding of the skin, which can also lead to the appearance of blisters. If the blisters that appear after cupping are small, it is sufficient to keep the blisters locally dry and sterilize them daily to prevent infection. If the blisters are large, you can use a sterilized needle to puncture the skin of the blisters, so that the liquid in the blisters out, pay attention not to break the skin of the blisters, keep the blisters locally dry, disinfected every day, to prevent infection until the blisters scabs fall off. If there is cupping blisters, please do not operate on your own, should go to the hospital as soon as possible to find a doctor to deal with, to avoid adverse consequences.