Blisters in medicine refers to blisters, finger joints long blisters consider and ringworm, sweat herpes related, need to standardize the diagnosis and treatment for the cause of the disease, and its treatment methods include general treatment, drug treatment and so on. 1. Ringworm: If the ringworm triggers the blisters at the finger joints, the local dryness and cleanliness should be maintained. It is recommended that patients apply antifungal drugs such as tylenol, bifonazole, etc., which can inhibit bacteria and help the blisters to heal. 2. Sweat herpes: Sweat herpes may cause blisters at the joints of the fingers, patients should not scratch the lesions to avoid breakage and infection. For early blister treatment, patients can use topical tretinoin and other glucocorticoid ointment, with anti-inflammatory and anti-itch effect. If the itching is severe, oral antihistamine drugs, such as loratadine, are needed. The causes of blisters at the finger joints are many, and it is recommended that patients go to a regular hospital to clarify the cause of the disease, cooperate with the doctor for standardized treatment, and use medication as prescribed by the doctor.