Small blisters on the hands (blisters) can be treated with antifungal drugs if caused by ringworm, or with glucocorticoids if caused by sweating herpes. 1. Ringworm: If there is a fungal infection on the hands can appear blister ringworm, use antifungal drugs, such as ketoconazole cream, terbinafine cream and so on. 2. Sweat herpes: small blisters on the hands can also be caused by sweat herpes, you can use glucocorticoid drugs for treatment, such as tretinoin ointment, antihistamines such as loratadine. You can also use glycerite lotion to help the blisters astringent dry. Blisters on the hands may be caused by other diseases, you should go to the hospital for examination, and should pay attention to the use of the above drugs as prescribed by the doctor.