Here is another great prevention for you:
Don't use douches, scented powders, scented tampons, and feminine deodorant sprays. They contain chemicals and perfumes that upset the natural balance of "good" bacteria and other micro-organisms in the vagina. Having a yeast infection and douching is a bad idea: Douching can spread a yeast infection up through your cervix and into the uterus. Feminine health starts from within!