Kangwanyan can be taken during menstruation. Kangwanyan is mainly a medicine for treating vaginitis as well as dysmenorrhea, abnormal leucorrhea and abnormal menstrual flow, so it can be taken during menstruation, especially for women who have dysmenorrhea. Kangwanyan is a proprietary Chinese medicine and its efficacy varies from person to person, with great individual differences. During menstruation, you need to pay attention to observe whether the amount of menstruation changes, whether the menstrual cycle changes and whether there are any menstrual discomfort after taking the drug during menstruation, because the drug may have a certain impact on the uterus and discomfort may occur. During menstruation, the body is prone to fatigue, so it is necessary to take a reasonable rest and avoid infections, sexual intercourse and bathing to avoid the possibility of pelvic inflammatory disease through the open vagina into the reproductive system.