I read something on Yahoo Health the other day, titled "Foods that fight PMS". Drinking chamomile tea is suppose to help with cramps because it relieves muscle spasms. I haven't tried it yet but I will next month. I have also increased my calcium during my time of the month and it has helped decrease the cramps. If you get a chance, read the article it's very informative.
http://health.yahoo.com/experts/joyb...that-fight-pms