Blisters on the feet (blisters) are mostly due to sports squeezing, friction and other reasons, and it is not recommended to pick them yourself. If a blister on the foot breaks, treat it accordingly according to the specific situation. If the blister is relatively small and the fluid in the blister is completely oozing out, the situation is not serious, you can apply iodine povidone locally to sterilize it. Then use band-aids, sterile gauze and other wraps to avoid continued friction or infection. If the blisters are large and the fluid has not completely flowed out, it is recommended to consult a doctor in time to draw out the fluid first, and then disinfect the area. It is also necessary to follow the doctor’s prescription of external boric acid solution, application of fusidic acid cream and other application treatment. Finally, use medical gauze local bandage to prevent wound infection. After treatment, pay attention to keep the local clean and dry, avoid using hot water to soak your feet to stimulate the wound. Avoid repeated rubbing of the affected area during treatment. It is recommended to wear light, breathable cotton socks, shoes should not be too tight, reduce activities.