Dampness on the hands, long blisters can be herbal external washing, and then with the effect of proprietary Chinese medicine will be better. Commonly used external washing Chinese medicine are snake beds, amaranth, raw barley, skin seeds, white moss, tribulus terrestris, cypress, bitter ginseng, ice chips, these drugs in addition to ice chips are normal decoction, ice chips crushed with boiling water after melting, put into the simmering potion inside the water temperature is appropriate to soak your hands, soak 2 times a day, each time soak for about 20 minutes. After soaking, you can use ointment, such as dehumidification and itching ointment, damphenol ointment, boric acid and zinc oxide ice ointment, Bute, ice yellow skin music, Qiang Yue ointment, etc., so that the effect will be better, but pay attention to reduce scratching, stimulation, pay attention to the life of the diet, do not stay up all night.