Artemisia annua has certain effects of clearing heat, detoxifying, cooling the blood and killing insects. Oxtail Artemisia tastes bitter, slightly pungent, cool in nature, also known as wild artemisia, tea velvet, purple pole artemisia, the drug has the effect of clearing heat and detoxification (removing heat and poisonous evils from the body), and is mostly used in the treatment of acute febrile illnesses, lung-heat coughs, sore throats caused by heat, carbuncles, swollen sores and venom, epistaxis (nosebleed), and other conditions. The efficacy of cooling the blood and killing worms of Artemisia oxoides is mostly used for the treatment of blood-heat hemorrhage and other diseases, in addition, this drug can also be used for the treatment of rubella itching. Artemisia oxalis can be used externally or internally, its adverse effects and contraindications are not clear, it is recommended to use the drug under the guidance of a doctor according to their own constitution and different conditions, and not to use the drug on their own.