Artemisia annua and Artemisia capillaris are two different medicines, and their sources, effects and indications are also very different. 1. Source: Artemisia absinthium comes from the whole grass of Artemisia grandis of the family of Asteraceae, while Artemisia capillaris mainly comes from the dried above-ground parts of Artemisia annua or Artemisia capillaris of the family of Asteraceae. 2. Efficacy: The main effects of Artemisia absinthium are cooling the blood to stop bleeding (cooling the blood and preventing bleeding), clearing heat and inducing dampness (removing heat and dampness in the body), while Artemisia capillaris is mainly used to clear heat and dampness, and inducing diuresis to relieve jaundice (clearing the biliary tract of evils and eliminating jaundice). 3. Treatments: Artemisia annua is mainly used for the treatment of cough, sore throat, rheumatic paralysis, damp-heat jaundice, hot diarrhea, gonorrhea, vomiting blood, hemoptysis, and traumatic bleeding. Yin Chen is mainly used for the treatment of wet sores and itching and damp-heat jaundice and other conditions. The adverse reactions and contraindications of Artemisia absinthium are not clear, and Yin Chen should be used with caution in those who have blood accumulation and yellowing, and those who have blood deficiency and yellowing. It should be noted that if you feel unwell, it is recommended to go to the hospital as soon as possible, do not self-medicate, so as not to delay the condition.