Blisters on the hands, may be the role of external forces, ringworm, can also be considered related to sweat herpes. It is recommended to pay attention to the care of the affected area, can be taken to extract the blister treatment, antifungal, anti-itching, glucocorticoid drug therapy, etc., can help relieve the symptoms. 1. The role of external forces: often engaged in hand labor, such as work caused by friction on the hands, resulting in local blisters. If the blisters are relatively large, you can go to the hospital outpatient clinic, extract the blister fluid through a sterile needle, and apply iodine povine locally to avoid infection. 2. Tinea versicolor: There are many types of tinea versicolor, such as blister tinea versicolor, which leads to localized blisters the size of green beans. You can apply miconazole nitrate cream, bifonazole cream locally, and take oral itraconazole capsules if necessary. 3. Sweat herpes: the cause of sweat herpes has not been fully clarified, may lead to the palms of the hands appeared in clusters of blisters, accompanied by pain, itching. If symptoms are obvious, tretinoin urea ointment can be given to accelerate symptomatic relief. Topical zinc oxide ointment and glycerite lotion have drying and anti-itching, astringent and sedative effects. Blisters on the hands, it is recommended to reduce the adverse stimuli, in the case of unknown etiology, do not blindly use drugs. You can go to the hospital dermatology department, after a clear diagnosis under the guidance of the doctor for treatment, do not self-medication.