Chronic yeast infections remedies


So I get chronic yeast infections and by that I mean 3-4 times a year. I know what causes them I’m pretty much an expert at this point. For me I think it’s my diet. I’m not the worst eater but I’m also not the best. I don’t know what else it could be. I’m tired of always buying monistat and such. I’ve tried apple cider vinegar baths. It just treats the outside which isn’t the problem. I need to treat the inside. Has anyone tried the soaking a tampon in coconut oil and leaving in over night? I use coconut oil to relieve the itching on the outside and works instantly. I did research and it says to use the tampon trick but who has actually tried that? I don’t want to waste tampons if I don’t need to.