you need to check ur partner or either start using a condom because he keeps giving it back to you..also make sure that he is not messing with someone who has it..it can be transmitted like and std even though it is an overgrowth of bacteria.

Baths instead of showers. All cotton panties. Douche. Keep it aired. All of these things can cause moisture which causes the bacteria to grow.

and wipe front to back

Talk to your doctor. Wear cotton panties. If they get damp then change them. Certain douches can help. I think the vinegar ones. Talk to your doctor and good luck.

I read where e-coli bacteria very often cause this –and the article said make sure you wipe from front of rectum to back and not back to front to avoid e-coli bacteria getting in the vaginal area at all.

Take showers only to prevent bath water from entering that area.
Avoid oral sex. Bacteria from mouths are bad, especially if the person needs a cavity filled.
Always wipe from front to back.
Do not douche too often. Usually,once, after your period should be sufficient. Too frequent douching eliminates the good bacteria that keeps down the bad bacteria. There has to be a natural balance there.
Change your panties every day.
Always wear panties with a cotton crotch.
Wash your panties in HOT water.