Talk to Gynecologist on Yeast Infection And Sexual Safety

Married and have diagnosed PCOS. I am 24 years, weight is 62kg height is 5'8''. I haven't gotten regular or naturally occuring periods since last year May. Since then I take progestrone every 2-3 months to have periods. Blood sugar is 125 post glucose. No thyroid problem. Complaint: My problem is that I keep getting yeast infections. I know it's common with PCOS and have been given antibiotics many times but it seems to only take care of then temporarily. I hardly ever wear panties to keep the vagina dry and clean. Wash it with soap every other day. It's a huge discomfort because I'm unable to get intimate without this worry. After sex, infection gets worse and takes longer to heal. So I've stopped having sex since the past month or so to see if the infections occur and go on their own, and they do. They are less intense and hurt less but they keep coming back even then. Please tell me of an easy and quick way to get rid of yeast infections through a cream or something. I dont want to