Suggest Cure For A Problem In The Vagina

I've been have having problems with my ph balance being off with my vagina. I've been to a doc twice. The first time they gave me metro gel and it didn't work. The second time they gave me this pill I can remember the name. It worked but two weeks later the oder came back. Is there anything else that will actually work? I've never had this problem in my life but it's been like this since november.