what can the doctor do?

In one week I'll have been on my "period" for two months now. I say period because a lot of the blood is old brown blood only a little of it is fresh red blood. Sorry if tmi. I want to go to the doctor so I can stop this period, but I don't know if there is anything they can actually do about it? I'm already on birthcontrol and I skip the placebo pills in order to not get a period but that didn't work so I'm not sure if I should go in or if there's really nothing my gyno can do about it?