The symptoms of small blisters and itchy feet may be related to herpes sweat, tinea pedis, hand-foot-mouth disease and other factors, which can be relieved by glucocorticoid, antifungal and antiviral treatments. 1. Sweat herpes: this is a blistering disease that occurs symmetrically on the hands or feet, accompanied by itchy skin symptoms, in the treatment of the doctor’s orders to choose prednisone and other glucocorticosteroid drugs to improve the patient’s symptoms. 2. Tinea pedis: when the patient has tinea pedis disease caused by dermatophyte infection, it will also cause small blisters on the heart of the foot and itchy symptoms, after diagnosis, you can choose econazole, miconazole, ketoconazole and other antifungal drugs under the guidance of the doctor to treat. 3. Hand, foot and mouth disease: it is an acute febrile rash disease caused by enterovirus infection, which is usually dominated by the distribution of rash and herpes on the hands, feet and mouth, and there is no specific anti-virus drug and specific method, but it can be shortened through the use of interferon, acyclovir and other drugs to shorten the course of the disease. The symptoms of small blisters on the heart of the foot and itchy, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease under the guidance of the doctor for standardized treatment, the use of drugs need to follow the doctor’s instructions.