The duration of use of motherwort varies according to different therapeutic purposes. For example, for the treatment of dysmenorrhea, it is usually recommended to start using it for 3-7 days in a row before menstruation and stop using it after the onset of menstruation. Motherwort has the function of activating blood circulation and removing blood stasis, regulating menstruation and relieving pain. It can be started on the same day after abortion, medical abortion or childbirth to effectively promote uterine contraction, expel blood stasis in the uterine cavity and promote uterine recovery. For patients with low menstrual flow, it can be taken orally after ovulation and continuously until the menstruation clears. 3 consecutive menstrual cycles of the drug can achieve better results. In addition, motherwort can be used to relieve dysmenorrhea. It is recommended to start taking it orally 3-7 days before menstruation and stop taking it after the onset of menstruation. Motherwort is best used in combination with other herbs, and patients are advised to take it under the guidance of a doctor for evidence-based treatment. During the medication period, the patient’s diet should be light, avoid spicy and stimulating diet, eat more vegetables and fruits, drink more hot water, and if discomfort occurs during the period, the patient should promptly consult the Chinese medicine department or gynecology department.