Causes and treatment for chronic bacterial vaginosis?

Alternatives. Intravaginal boric acid, a 600 mg capsule once nightly for 14 days may be able to help with your problem. This medication is not FDA-approved for this purpose and must be made by a compounding pharmacy. Boric acid can be fatal if swallowed rather than used intravaginally, so be careful around children. Still it's a worthwhile option when all the antibiotics don't work.
Bacterial vaginosi. Go on the following cdc website. It is excellent.