Wormwood hair washing has no effect of making gray hair black. Mugwort is the dried leaves of the plant Mugwort, family Asteraceae. Picked in summer when the flowers are not in bloom, remove impurities, dry, raw or fried charcoal with. The medicinal properties are pungent, bitter, warm; there is a small poison, attributed to the liver, spleen, kidney meridian. 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), settling the fetus, etc. It is also used externally to dispel dampness and relieve itching. It is often used in treating hematemesis, epistaxis, metrorrhagia (excessive menstrual flow or dribbling), excessive menstruation, cold pain in the lesser abdomen (lower abdomen), irregular menstrual cycles, and infertility due to coldness in the uterus. It can also be used for cold pain in the epigastrium (cold pain in the stomach, epigastrium and abdomen), restlessness of the fetus, fetal leakage (a small amount of bleeding from the vagina in early pregnancy), hemorrhage, and itching of the skin. Mugwort leaves can be taken internally, can also be used externally by decoction and external wash, generally only for the treatment of eczema, itching, scabies and other itchy skin. Mugwort leaves wash hair can play a role in relieving itching, but there is no effect of hair. Mugwort leaves need to be standardized use under the guidance of a doctor. If the patient is not feeling well, it is recommended to consult a doctor in time to identify the cause of the disease and standardize the treatment.