Suggest Treatment For Slimy Vaginal Discharge And Redness Of Vaginal Tissue

I've been told that I tested positive for Group B strep and I am NOT pregnant. They say that most women have this and it's not a problem until you are pregnant, and it does not cause symptoms, but I do have symptoms of excessive white/clear/yellow slimy discharge, random minor itching, and irritation/redness of vaginal tissue. What can I do to make these symptoms go away? I can't possibly believe that they are symptoms I have to just deal with for the rest of my life! I've already taken a course of Penicilin and a course of Keflex and neither one cleared it up! Is there anything else that can be done or can my body and immune system eventually get rid of this on its own? Thanks.