Yin Chen and Artemisia absinthium are both Chinese medicines, but Yin Chen can be used for dampness and warmth (warm diseases caused by feeling dampness and heat), summer dampness, wet sores and itching, etc. Artemisia absinthium can be used for asthma and cough, sore throat and so on. Artemisia absinthium is the whole grass of Artemisia grandis, family Asteraceae, with bitter taste, slightly sweet, cool nature, it has the efficacy of cooling blood and stopping hemorrhage (making blood cool and moist, preventing hemorrhage), clearing heat and inducing dampness (removing heat and dampness in the body), it can be used for lung diseases, asthma, cough, sore throat; sores on the body and face; hemoptysis, epistaxis. Contraindications and adverse reactions are not known. Yin Chen is the dried above-ground part of Artemisia annua or Artemisia capillaris, family Asteraceae, which belongs to spleen, stomach, liver and gallbladder meridians, with bitter, pungent and slightly cold medicinal properties, and it has the efficacy of relieving yellowness and gallbladder, and clearing dampness-heat. Yin Chen can be used for itching of wet sores; dampness, warmth and summer dampness, often used together with Scutellaria baicalensis, Slippery stone and Mutong to treat external dampness, warmth or summer dampness, chest tightness and abdominal distension, body heat and tiredness, and dysuria (unruly urination). It can also be used for jaundice with scanty urination, and is a key medicine for jaundice. This product should be used with caution for those with blood deficiency and yellowing as well as those with blood storage and yellowing, and the adverse reactions are not clear. Please do not use the drug by yourself, if you feel unwell, please go to the hospital to avoid any delay or adverse reaction.