The average yogurt you buy at the grocery store has dead cultures.
Consider eating yogurt with live cultures or kefir. 1. Wear underwear that is cotton vice synthetic 2. Avoid wearing underpants when you go to bed at night. 3. Don’t wear tight fitting panties & pantyhose. 4. Use natural tampon/ feminine pads (avoid those which are scented). 5. Avoid douches as well as use of harsh, drying soap on.