Cupping blisters may be caused by leaving the cupping for too long or improper operation, such as burns, and need to be promptly sterilized under the guidance of a doctor to avoid infection. 1. Leave the cupping time too long: generally leave the cupping time in 5-15 minutes, if leave the cupping time is too long, the continuous suction may lead to blisters on the suction site. 2. Improper operation caused by scalding: mainly seen in the fire cupping treatment, due to the operator’s unskilled movement, resulting in the fire burns localized, scalding induced blisters appear. Cupping blisters, as long as the blisters are not broken, can be absorbed naturally. If the blister is too large, a disposable sterilized needle can be used to puncture it from the bottom of the blister, and then cover it with a sterilized dressing after releasing the water. Cupping treatment should go to a regular medical place, operated by a professional doctor, to ensure the safety of treatment.