Women drinking water with mugwort leaves may have the effect of warming menstruation and dispersing cold. However, drinking water may not be able to completely analyze the active ingredients of mugwort leaves, and only a single drug, so the efficacy is limited, in addition, it is not recommended that patients take long-term skin. Ai Ye is the dried leaves of the plant Ai, family Asteraceae. Taste pungent, bitter, warm; a small poison. Attributed to the liver, spleen, kidney meridian. It can warm menstruation and stop bleeding, dispel cold and relieve pain; external use to dispel dampness and relieve itching. Mugwort leaves can be used in treating hematemesis, epistaxis, metrorrhagia (excessive menstrual flow or more than a few drops), excessive menstrual flow, fetal leakage (a small amount of vaginal bleeding in early pregnancy), hyperemia, cold pain in the lower abdomen, irregular menstrual flow, cold uterine infertility, and externally for treating itching of the skin. Vinegar moxa charcoal warms menstruation and stops bleeding, used for bleeding due to deficiency and cold. People with Yin deficiency and Blood heat should be cautious of taking Mugwort. If the patient has the need to use mugwort leaves, should be used by a professional physician after a clear identification of the disease, so as not to blindly use the drug, resulting in adverse consequences.