There are two most common cases of eczema on the hands: the first, because the patient is in a humid, hot environment for a long time, the fingers do not sweat well, resulting in a special eczema performance on the fingers, called sweat blisters, this situation is indeed related to the heavy dampness on Chinese medicine. The second, there are some patients in the hands of eczema and dampness is not directly related, because some people in the hands of eczema, often with the daily life and work in contact with the goods, such as some housewives in the daily laundry, cooking in long-term contact with detergents, resulting in skin allergy factors, only in the hands of repeated episodes of eczema.