For people with normal menstruation and no need for medication, musk and myrrh should not be taken during menstruation. If there exists abnormal menstruation caused by blood stasis in the body, musk and myrrh can be taken under the guidance of a doctor. Musk has the efficacy of opening the mind, activating blood circulation and dispersing knots, relieving pain and promoting labor. Musk is not to be taken during menstruation because of its blood-activating effect. Eating musk during menstruation can easily lead to long menstrual periods, increased menstrual flow and other side effects. Myrrh has the efficacy of activating blood circulation and relieving pain, subduing swelling and muscle growth, and dispersing blood circulation and removing blood stasis. It is not recommended to take medicines that activate blood circulation during menstruation, which may lead to prolonged menstruation and increased menstrual flow, and may lead to anemia for a long period of time. If there is blood stasis in the body, you can take musk and myrrh during menstruation under the guidance of a doctor. Because of the different conditions, it is not recommended to take musk and myrrh during menstruation.