Blisters are known as blisters. Blisters on the feet may be caused by excessive walking, congenital genetics, tinea pedis, eczema and other factors. It is recommended to reduce friction, internal and external antifungal, glucocorticoid drugs, can help improve the symptoms. 1. Walking too much: Walking too much, wearing shoes that do not fit the feet, causing friction on the local area, resulting in local blisters. The blisters are small and it is recommended to reduce the friction, which can be absorbed by itself with the passage of time. 2. Hereditary: Acquired herpetic epidermolysis bullosa is an autoimmune skin disease, which may cause a series of inflammatory reactions, resulting in localized blisters and blisters. Glucocorticoids such as prednisone may be given to suppress the inflammatory response if the lesions are extensive. In addition, methotrexate, azathioprine and other immunosuppressants, also has a certain effect. 3. Tinea pedis: Tinea pedis is caused by fungal infections, such as blister-type tinea pedis, which leads to blisters on the feet. You can use topical boric acid solution, ravnol, etc. to dry the skin and reduce oozing. Topical miconazole cream, ketoconazole cream, oral itraconazole capsules, terbinafine hydrochloride tablets, etc., have the effect of inhibiting or killing fungi. 4. Eczema: The causes of eczema are complicated, such as genetic, mental, infection and other factors, resulting in skin erythema, papules, blisters and other symptoms. Compound glycyrrhizin tablets, ebastine tablets, etc. can be given, if necessary, with a sterile syringe to extract out the blisters, boric acid solution wet compresses can promote recovery. Blisters on the feet, it is recommended to go to the hospital dermatology department for examination and standardized treatment after a clear diagnosis. The above drugs need to be used in accordance with medical advice.