There is no best time to take motherwort, it is usually taken in the morning and evening, avoiding the menstrual period. Motherwort is the fresh or dried above-ground part of the plant motherwort of the genus Motherwort, family Labiatae. It is bitter, pungent and slightly cold in flavor, and belongs to the liver, pericardium and bladder meridians. It has the effects of clearing heat and removing toxins, activating blood circulation and regulating menstruation, and inducing diuresis to reduce swelling. Clinically used in the treatment of menstrual disorders, dysmenorrhea and menstrual closure, not exhaustive discharge, edema and urination, sores and swollen poisons. There is no clear contraindication on the time of taking motherwort, usually divided into morning and evening, avoiding the menstrual period, so as not to cause excessive menstruation or prolonged menstruation. Pregnant women should be cautious. Drugs need to be taken under the guidance of a professional physician, do not take medication without authorization, in order to avoid adverse consequences.