I get menstrual cramps pretty much every month. Some months it's worse than others. And each time, I try to resist the urge to take painkillers like ibuprofin because I always get an upset stomach from them. I couldn't pull this off without herbs, however.
There are two ways that I use herbs to tret menstrual cramps. The first way is by using the plants to prevent cramping in the first place. I take stinging nettle and oatstraw throughout the month, which help a lot.
When I actually have the cramps, I use the following herbs to help bring me relief. I don't use them all at once - I'll just pick one or two and stick with that.
I use a tea for all of them except the cramp bark. For that, I take a tincture. I never mix them - I just take one plant at a time because they don't seem to mix well together. The exception to this is with peppermint and chamomile.