Chronic renal failure patients with itchy skin is often accompanied by dry skin, Chinese medicine pathogenesis for blood deficiency, heat and toxicity. If the patient has dry stool must be the first priority to pass the internal organs to clear the heat and toxicity. The medicine can be taken to prevent the wind and Tong Sheng Wan, to pass the internal organs to dispel the wind two Gu; the soup can be based on the identification of the prescription to increase the yellow to pass the internal organs to clear the heat and toxicity, plus the skin, bitter ginseng, cicada, white moss skin, etc. to dispel the wind and relieve itching. If the heat and toxicity are not too much, and blood deficiency is the main cause of wind, then we can take angelica drink, which is composed of angelica, Chuanxiong, Bai Shao, Shengdi, Fangfeng, Tribulus terrestris, Thornbush, He Shou Wu, Huangqi and Licorice. When the skin is itchy, you can also use a decoction of Chinese herbal medicine to wash the skin externally. You can choose to decoct the appropriate amount of silver flower, forsythia, zinghua dingdian, thorny mustard spike, wild chrysanthemum, ground skin, bitter ginseng, and take the liquid to be warm without burning the skin for external washing once a day or once every other day. It is most scientific to use the medicine according to the symptoms.