Baichuo is the name of an herbal medicine, the main effect of this drug is to kill worms, and also to stop bleeding, in dermatology is mainly applied to parasitic infections of skin diseases, in addition to skin diseases such as skin vascular bleeding, purpura, and other skin diseases. It also has a certain therapeutic effect on diseases arising from parasitic infections, such as pubic lice, head lice, and trichomonas infections, such as infectious diseases formed by Trichomonas vaginalis and Trichomonas urethra. After the decoction of the drug, topical washing or soaking can have a therapeutic effect. For skin diseases formed by allergic purpura and stress purpura, the drug can be used with other Chinese herbal medicines in a decoction to be taken orally.