I need a remedy for Vagina Fungus :(

Angela
I suffer from PCOS and I'm diabetic... I get yeast infections easily and it's been a couple of years that I have suffered from vaginal fungus but my OBGYN says it's normal due to diabetes I only use cotton underwear and wash it in hot water, gentle detergent scent free but it doesn't matter what I do I'm sick and tired of the itching and burning sensation and using cortisone cream...does anyone know of a more natural way to treat it or cure it? Thanks!