Zangxihuangjin;Corydalis Moorcroftianae Radix Sources:The drug is the root of Corydalis moorcroftiana Wall.ex Hook.f.et Thorns.(family Papaveraceae),growing in flowstone beach with the altitude of 4200~5400m,distributed in Xizang. Actions and Indications:It is used to clear away heat and toxic materials,for the treatment of carbuncle,furuncle and other acute skin infection due to heat evil.