bleeding between periods

The same thing! Sex was painful all of a sudden and I would bleed slightly, then I started randomly bleeding like a period for a few days on and off? I went to the doctor and she told me to drink cranberry juice! Needless to say that didn't work so another doctor checked me out and said my cervix looks inflamed. She's referred me to the hospital to be safe, but she said its most likely some kind of cervix erosion, apparently it's common if your young and on the pill