Daochacai;Lapsanae Apogonoidis Herba Sources:The drug is the herb of Lapsana apogonoides Maxim.(family Compositae),growing in roadside, field,wasteland and galley,distributed in the center-south of China and Yunnan,Sichuan. Actions and Indications:It is used to clear away heat and toxic materials,cool blood and cure skin infection,for the treatment of bloody scrofula,swelling and pain of pharynx and larynx,dysentery,mammary abscess and delayed measles.