Hands burst skin may be long-term exposure to chemicals, sweat herpes, ringworm and other causes. 1. Long-term exposure to chemicals: exposure to too many irritating chemicals. Such as alkaline detergent, laundry detergent, soap, etc., the skin’s outermost protective layer is destroyed, the skin on the hands will slowly become dry and appear to break out. 2. Sweat blisters: hand sweat more, often appear hand blisters, blisters dry after the skin, that is, sweat blisters on the hands of the skin, belonging to a kind of skin eczema. 3. Ringworm: generally because of fungal infection caused by ringworm. Starting from the fingers, gradually appear a hand of the skin, and then slowly infected to both hands, at the same time will be accompanied by obvious itching and erythema or scales. If the hands burst skin accompanied by itching, erythema, blisters and other uncomfortable symptoms, it is recommended to go to the regular hospital dermatology consultation, clear cause, under the guidance of a professional doctor to take targeted treatment.