Itchy finger blisters need to be treated according to the cause of the symptoms, common causes of herpes sweat, tinea versicolor, etc., generally to drug treatment. 1. Sweat herpes: sweat herpes may be related to local allergies, dermatophyte infections, mental factors, etc. It occurs in the palms of the hands, fingers, fingers, finger side and other parts of the body, manifested as a symmetrical distribution of blisters on the surface of the skin, accompanied by intense itching, tingling or burning sensation. Oral antihistamine drugs such as loratadine, local topical mometasone furoate gel, halometasone ointment. 2. Ringworm: ringworm is a disease caused by dermatophyte infection of the skin of the hands, manifested as blisters, flaking, dryness and other symptoms of the skin of the hands, accompanied by varying degrees of itching. Local topical antifungal drugs, such as ketoconazole ointment, terbinafine ointment, etc., external drug efficacy is not good or the symptoms are more serious can be combined with oral drugs, such as terbinafine, itraconazole and so on. All of the above drugs have adverse reactions, it is recommended to use under the guidance of a doctor. Itchy blisters on the fingers may also have other causes, it is recommended that patients go to the hospital, after clarifying the cause of the disease, under the guidance of the doctor for targeted treatment.