Cramps are caused by the contraction of your uterus during menstruation. It usually means that the uterine muscles are contracting too hard or too fast. You may feel the cramps in your abdomen, in your back, or even down your legs. Take it the night before you think your period will start. You may also try taking a warm bath or place a hot water bottle on your abdomen.
Some girls feel that mild exercise helps relieve menstrual pain.
If the pain still is not managed with this medication, then I think you need to see your doctor. Ask mom to make an appointment. Thank you, Renee Dear Renee, PMS is the collection of symptoms that occur anywhere from a week to 10 days before your period starts. It may be physical, like breast tenderness, and bloating, or emotional like depression and anxiety. All the symptoms together make it a syndrome.