I need answer...me and lady are together all the time...I know for sure we are not cheating...so that option is out...I really want to know how to fix this thing. We went to the doctor numerous times and what they do is prescribe us more antibiotic. My situation is that everytime me and my lady have sex she gets BV and prior to us being together she never had that problem with any men she had in the past. We both got treated more than once. I took Metronidazoles 500mg twice a day for 7 days and one time I took Metronidazoles 500mg three times a day for 10 days. She also took the same medication. Then after we both got treated we had sex and the unexpected occurred. She got BV again. We are confuse and need help...