I was the same a few years ago, It got to the point of fainting once over the pain it caused. I tried so much and the one thing that eased the pain abit was "femidex" But since being on the pill I get small cramps but I guess its expected but the pill really did cut down on the pain a hell of alot!

Has she tried heat soothers? I used to find that hot drinks and heat around my tummy area helped to ease the pain