Many use normal pain killers to ease the pain, but for example exercise and warmth are also very popular methods!
Pay attention to your nutrition because some foods can help with PMS and period cramps! For example magnesium can ease menstrual cramps by relaxing the uterine muscles in the uterus. You can learn more about this here.
If you're interested in finding more natural ways to ease the cramps, there's a very good blog text about it here
And here you'll find Lunette Cup users' best tips how to reduce the hideous feeling during the worst menstrual cramps.
We also recommend to try period yoga! :)
Please note that if the cramps are so bad that normal painkillers won't help or you can't go to school or work, consult your doctor!