I had BV for about 10 years and last 3 years when I married it worsened ! I had it every single time after intercourse ! I constantly took metronidazole for 3 years and it didn't help . So I stopped taking it . I visited many doctors including Mayo Clinic! And doctors prescribed only metronidazole . But METRONIDAZOLE makes BV worse and chronic as antibiotics kill bad and good (lactobacillus ) bacteria in vagina . If there are no good bacterias BV will come back again and again ! .what really helped me is a NARURAL TREATMENT WITH BORIC ACID FOR 21 days !!!! Not less than 21! Boric acid creates acid environment in vagina to kill pathogens .Take a boric acid capsule vaginally for 21 days at night and in 21 days I used high potency lactobacillus probiotics (50 billions) Vaginally not orally . Oral probiotics seldom reach vagina so they don't help much . So I bought empty gelatin capsules on eBay and transferred probiotic powder into a gelatin capsule and inserted vaginally for 7days . AND BV HAS GONE !!!!dont have it for 3 months !! Also I constantly take boric acid capsule vaginally twice a week (usually after inter course )to constantly maintain acidic it's of vagina !!!
This really helped me !