Foot grinding blisters, smaller blisters generally do not need to be picked; blisters larger, more exudate, need to be picked under the guidance of the doctor. 1. do not need to pick: if only small blisters, generally do not need to pick attention to hygiene, within 48 hours with cold water rinse, cool towels, or ice cold compresses, more than 48 hours can be hot compresses, most of the self-absorption, no need to pick. 2. need to be pierced: if the blister is larger and the exudate inside the blister is obviously more produced, localized swelling pain, you can first use iodine povidone to disinfect the blisters and the surrounding skin, and then use a sterile needle to pick the blisters of the bottom of the exudate, and then use sterile gauze to bandage, to prevent infection. Foot abrasion blisters, it is recommended to seek medical attention in a timely manner, under the guidance of the doctor to take the appropriate treatment program, do not do it on your own to avoid infection.