Blisters that rub on the feet should be blisters. When blisters are ground out on the feet, they should be treated according to the size of the blisters, if the blisters are small, usually do not need to be treated, if the blisters are large, they need to go to the hospital for drainage treatment. When patients wear out blisters on the feet, if the blisters are relatively small, usually the blisters can be self-absorbed, the patient does not need special treatment, only need to prevent the blisters from bursting. If the blisters are large, they should be treated in a hospital. The doctor will use a sterilized needle to puncture the surface of the blister in a sterile environment, drain out the blister fluid, and then use iodine or alcohol and other disinfectant to smear the wound and the surrounding area, and finally use a clean gauze bandage, and change the medication on a regular basis. Most of the blisters on the feet are caused by walking too much and repeated friction, it is recommended that the patient should wear breathable, appropriate size shoes in daily life, but also in the easy to wear out the blisters of the parts of a band-aid, to reduce friction, to avoid blisters on the feet.