Suggest Treatment For Vaginal Discharge And Itching In Vagina

I was diagnosed by culture to have gardella vaginosis back in december. I was treated with oral flagyl , suppository flagyl, clindamycin....on,, and off, and on and off.....I also am taking lactos bacillia for good measure. I am feeling desperate. Will it ever go away? Terribly itchy and lots of discharge.