Dampness clear capsule has the effect of nourishing blood and moisturizing the skin, dispelling wind and relieving itching (relieving itching by dispelling the wind that invades the surface of the muscle), and is one of the commonly used drugs in clinical dermatology. The capsule is made up of Radix Rehmanniae Praeparata, Radix Angelicae Sinensis, Salviae Miltiorrhizae, Cicada Molt, Radix et Rhizoma Ginseng and so on. Clinically, it is mostly used for wind itching caused by blood deficiency and wind dryness, which is characterized by dry, flaky and itchy skin, accompanied by scratches, blood scabs and hyperpigmentation; itchy skin is seen in the above symptoms. It should be noted that pregnant women and allergic individuals should be cautious; avoid eating spicy, seafood products; should not be taken at the same time during the medication warm drugs; due to diabetes, kidney disease, liver disease and other diseases caused by itching of the skin, does not belong to the scope of adaptation of this drug; should not be used to hot water to wash and scald the affected area. It is recommended to use the medicine under the guidance of traditional Chinese medicine practitioners and dermatologists, and during the period of using the medicine, the diet should be light, do not eat spicy stimulation.