Artemisia annua extract is the dry whole grass extract of annual herbs Artemisia annua and Artemisia annua; It mainly contains flavonoids, coumarins, terpenes, phenylpropionic acid, volatile oil and other artemisinins; It has pharmacological effects such as antimalarial, antibacterial, antiviral, anti-inflammatory, antipyretic and analgesic, anti schistosomiasis and other parasites, immunity, tumor inhibition and cardiovascular system; Clinically, it is commonly used in the treatment of malaria, yin deficiency fever, bone steaming fever, heat evil fever, chronic bronchitis, discoid lupus erythematosus, oral lichen planus, dermatomycosis, neurodermatitis, skin pruritus, infantile autumn diarrhea, epistaxis and other symptoms.