When a foot is abraded with a blister, it is treated by disinfecting or draining fluids, depending on the size of the blister and the corresponding symptoms. If the blister is small and non-inflammatory, the treatment does not need to puncture the blister and keep its surface intact. The fluid in the blister will absorb on its own over a period of time, and the absence of skin lesions reduces the risk of infection at the blister site. In the case of larger blisters, the fluid in the blister is too large to be completely absorbed. After local disinfection and cleaning, a syringe can be used to suck out the fluid from the bottom of the blister, and then disinfect the blister and apply a dressing to protect the wound. Pay attention to ensure the integrity of the skin, in order to reduce the area of the wound exposed to the air to reduce the risk of infection, the specific operation by a professional physician. In daily life, try to choose comfortable sports shoes to prevent the feet from being abraded with blisters.