Wormwood that is, Artemisia annua is not wormwood, the two in the flavor attributed to the meridian, efficacy, treatment and other aspects of the difference. 1. Sexual flavor: Artemisia annua taste bitter, pungent, cold, into the liver, gallbladder meridian. Mugwort leaves taste pungent, bitter, warm, to the liver, spleen, kidney meridian, a small poison. 2. Efficacy: Artemisia annua has the effect of clearing deficiency heat, removing bone vapor, relieving summer fever, stopping malaria, and reducing yellowness. Mugwort has the effect of warming menstruation and stopping bleeding (warming the body’s meridians to stop bleeding in the body), dispersing cold and relieving pain (relieving pain by dispelling cold in the body); and dispelling dampness and relieving itching when used externally. 3. Indications: Artemisia annua is mainly used for treating summer fever, fever due to yin deficiency, night fever and early coolness, bone vapor and labor fever, malaria, cold and heat, and jaundice due to dampness and heat, etc. It is also used for treating the symptoms of hematemesis and epistaxis. Artemisia absinthium is used for hematemesis, epistaxis, metrorrhagia (excessive menstrual flow or dribbling), excessive menstruation, cold pain in the abdomen, cold uterus, infertility, etc. It is also used for external treatment of itchy skin. Artemisia annua is cold in nature, and should not be used in people with cold spleen and stomach (spleen and stomach weak and cold), loose stools (feces thin and not shaped) and diarrhea. Adverse effects of Artemisia annua and Artemisia absinthium are not clear. If you are not feeling well and need to use the medicine, please go to the hospital and use it under the guidance of a professional Chinese medicine practitioner.