Betadine for BV
I have suffered with this for years. Unfortunately I have never really been cured. The longest I have went is probably 6 months with no symptoms. I started a forum on a health board regarding peroxide for treatment 4 or 5 years ago that had 100's of posts to my surprise. That's when I discovered I wasn't alone.
If your BV is mild, don't do anything! Take your supplements and wait until after a period and see what happens. The more you mess around with changing the flora in your vagina the more you are going to get things totally out of whack. I learned the hard way. Peroxide worked for me, temporarily but always came back with a vengeance. The more you do, the worse it comes back. You are killing all the bacteria in your vagina and some things allow the good bacteria to bounce back quickly while keeping the bad at bay.
If you must treat it, add some Betadine to good distilled water (pH 7, city water with chlorine has a very high pH) douche with betadine for 7 days, You can even use the swabs to clean the vaginal walls. Do this in the morning because it takes 120 minutes for the flora to begin to bounce back. Lactobacillus first! At night use a good quality yogurt and a syringe and then insert a tampon to hold it in. Continue yogurt treatment for a few days. Take a good quality probiotic daily.
Also Vinegar seems to allow the Lactobacillus to survive douching while killing the bad bacteria. If your BV isn't too bad try the vinegar and the yogurt treatment, watch what you eat and try to boost your immune system. Wait it out, it takes time.