Premenstrually, chamomile tea may be particularly helpful because it contains properties that relieve muscle spasms, and may therefore help reduce the severity of menstrual cramps. (And who would turn down a little relief?). In addition, chamomile seems to reduce tension that may lead to anxiety and irritability, helping combat the mood changes experienced during PMS. Chamomile tea is naturally caffeine-free, so it’s an ideal choice to replace some of your favorite caffeinated beverages when your period is approaching.