The treatment of blisters on the feet needs to be chosen according to the specific cause of the disease, such as blisters caused by friction, which can be sterilized after picking; blisters caused by sweating herpes can be treated with topical glucocorticosteroid medication; those caused by tinea pedis can be treated with topical antifungal medication. 1. Friction: If the blisters appear locally due to repeated friction of the feet, ask a professional doctor to use a sterile syringe to extract the blisters, and thereafter disinfect with iodine povidone, apply mupirocin ointment and other drugs to prevent local infection, and keep the lesions clean. 2. Sweat herpes: when blisters appear in sweat herpes, you can take oral loratadine tablets to relieve itching symptoms, and use topical tretinoin urea ointment, halometasone ointment and other treatments. 3. Tinea pedis: Tinea pedis patients can use ketoconazole cream, terbinafine cream and other antifungal drugs. If the external drug is not effective and the lesions are serious, you can take oral terbinafine hydrochloride tablets, itraconazole capsules and other drugs. When there are blisters on the feet, you should consult a doctor in time, after clarifying the cause of the disease, follow the doctor’s instructions to use medication.