The nasty BV!!

So, I have come down (AGAIN) with Bacterial Vagnosis! So annoying! For those who don't know what BV is, you know how in high school some of the mean little boys make fun of girls smelling "fishy?" That's from BV. And my doctor and the internet have basically told me there's really no evidence as to why women get it.
​Any help? It's always cured with a simple antibiotic, but does anyone have any ideas or tips as to how I can keep this away?