Moxibustion blisters may be a normal phenomenon, or it may be due to the local temperature is too high, the moxibustion time is too long, the skin cuticle is thin. 1. Normal phenomenon: small blisters appear when moxibustion, under the premise of normal standardized operation, may be due to excessive moisture in the body. 1. Local temperature is too high: moxibustion local temperature is too high, it is easy to burn the skin caused by increased cell permeability, tissue fluid seepage subcutaneous formation and blisters. 2. Moxibustion time is too long: the skin receives continuous heat stimulation for too long can also cause burns, which can easily cause skin cell destruction, tissue fluid into the subcutaneous formation of blisters. 3. Thin skin stratum corneum: some people due to excessive skin care skin stratum corneum thinning phenomenon, so the skin is more sensitive, more vulnerable to damage, this time moxibustion is more likely to blisters. Therefore, it should be noted that moxibustion needs to be operated by a professional doctor, do not operate on your own, a single moxibustion time should not be too long. If moxibustion blisters, you need to go to the hospital in time, the doctor according to the situation to deal with, do not pick the blisters, so as not to cause infection.