Itchy palms and fingers may be caused by ringworm, sweat herpes and other factors, the patient should promptly seek medical attention to clarify the cause of the disease and then carry out appropriate treatment. 1. ringworm: fungal infection of the superficial skin of the hand caused by the disease, can be infected through direct or indirect contact, there will be pimples, blisters, scales and other symptoms of the hand, with itching, can be used externally clotrimazole, cyclopiazole, cyclopiazepoxide and other antifungal medications for treatment. 2. Sweat herpes: If the itchy palms and fingers are symmetrical, with localized blisters, it should be considered to be caused by sweat herpes, which may be caused by allergies, dermatophyte infections, psychiatric factors, etc., and can recur annually, with significant itching. Specifically need to go to the hospital, a clear diagnosis, the drug should be used under the guidance of the doctor.