What treatment should be taken for overgrowth of bad bacteria in the vagina that cause bad odor.is there any oral treatment.could vaginal douche help?

Probably BV: Bacterial vaginosis is a common condition in women where the normal balance of bacteria in the vagina is disrupted and replaced by an overgrowth of certain bacteria. Bv is not a sexually transmitted disease. It causes vaginal discharge that is usually white or gray. Most complain of a fish-like odor noticed especially after intercourse. It is treated with metronidazole.