The root of Artemisia capillaris does not have the efficacy of treating diseases. The drug source of Yin Chen is the dried above-ground part of the plant Artemisia binata or Artemisia sinensis of the family of Asteraceae, which is bitter, pungent and slightly cold in nature, and is attributed to the spleen, stomach, liver and gallbladder meridians. It has the effect of clearing dampness and heat, relieving bile and jaundice, and can be used in the treatment of jaundice, dampness and warmth (warmth caused by feeling dampness and heat), summer dampness and itching of wet sores, etc. The herb has been used in the treatment of jaundice, dampness and heat. The medicinal part of Yin Chen is the dried above-ground part, and its root is not used as a medicinal herb, therefore, it does not have the efficacy of treating diseases. Before using Yin Chen, it is recommended to go to regular hospitals for consultation and treatment under the guidance of professional physicians.