Whether the blisters on the feet need to be broken, according to the size of the blisters, the cause of a comprehensive analysis, specific treatment. If the blisters are small and dense corn-like, they may be caused by fungal infection, i.e., foot fungus, and usually do not need to be broken, local topical antifungal drugs can be applied, and when the fungus is inactivated, the blisters will naturally absorb and fall off. If the blisters are larger and more vesicles, may be due to strong friction of local tissues for a long time, if they are simply absorbed naturally will be very slow, can be picked, but need to pay attention to the principle of asepsis, such as local disinfection with alcohol or iodophor, and then use a sterile syringe to draw out the vesicles, the local can be applied externally 3% boric acid solution, in order to achieve the purpose of swelling, dry, epidermis as far as possible not to tear, so as to avoid infection, if necessary, can follow the If necessary, oral antibacterial drugs can be prescribed to prevent infection. As there are more reasons for blisters on the feet, so the treatment cannot be generalized, patients need to go to the hospital dermatology examination if necessary, in order to clearly confirm the diagnosis, symptomatic treatment.