MORE watery discharge after Metrogel (for Gardnerella/BV)

Has anyone else experienced this?

I have cervical inflammation and milky yellow discharge. My doctor tested by cervical swab and it came back positive for Gardnerella, which she said is BV (though I had no odor). I did 5 nights of vaginal Metrogel, but I'm still experiencing watery discharge a week after my last application...possibly even MORE than before...I'm so tired of this. Any thoughts would be appreciated