The treatment of a blister on the hand depends on the severity of the injury. If the blister area is small, the situation is not serious, you can self-medication, if the injury area is large, the blister area is large or the blister broke out that should be timely medical care. 1. small blistering area: small blistering area, pay attention to keep the affected area hygiene, do not get wet, do not break the skin, you can apply iodine volts disinfection and other prevention of infection, to observe the main, waiting for the affected area to absorb. 2. blistering area: blistering area is large or blister skin broken, then we have to consult a doctor in a timely manner, under the guidance of a professional doctor, anti-inflammatory, bandage, do a good job of care, to avoid wound infection, inflammation. The hand was burned a blister, must pay attention to care, if the affected area has not been scabbed, better, then should promptly go to the hospital, under the guidance of the doctor to deal with the wound, to avoid the affected area is infected.