Blisters on the body of the foot are caused by skin trauma or friction, most if the blisters are not serious will eventually disappear on their own and do not require special treatment. First, if you need to deal with it, you should first reduce the pressure on the blood blister or blister to ensure its integrity and not tear its outer membrane. The internal fluid will be absorbed by itself after it is drained. If you show blister lesions on the leg and have pain you can use an ice pack to apply a cold compress for 5-10 minutes, which can reduce inflammation and swelling. Second, the blisters are more serious and there are blood blisters, you can carry out surgical treatment. 1, wash your feet, use iodine to thoroughly clean the skin around the blisters or blood blisters. 2, puncture, take out the fluid in the blisters on the feet, use sterile gauze to bandage, bandage every 2 days after the dressing, observe the healing of the incision. If there is no redness, swelling and oozing, you can continue to change the medicine. If there is redness, swelling and oozing, consider that there is infection and you need to go to the hospital for timely treatment.