You can eat Shuanghuanglian when you are menstruating, and the principle of medication during menstruation is to pay attention to the following points: first, blood-activating drugs should not be eaten, such as Dahuoluo Pills, Tianma Pills, these blood-activating drugs should not be eaten during menstruation. In addition, Gui Zhi Fu Ling capsule and so on should not be eaten during menstruation, so as not to cause an increase in the amount of menstruation; the second, bleeding drugs do not casually eat, because menstruation is the endometrial shedding of bleeding caused by the uterine lining, if it is casually eaten to stop the bleeding of medicines will make the time of menstruation change; the third, in the menstrual period there are a number of hormone drugs can not be unauthorized to take, such as contraceptives, there are also estrogen tonic Jiale and progesterone like progesterone, and so on. Progesterone and so on, these in the menstrual period if you want to take in the doctor’s guidance before you can give the appropriate medication.