BC and discharge

Brianna
So I first went on BC in February and was having problems with brown discharge, went to the doctor in April and she said it's fine. I didn't take the pill for about two months this summer and now have been on it for 3 weeks and having discharge every day. Will this discharge ever go away or should I go back to the doctor?? I obviously don't want to go back if she's going to say the same thing.