Hi, get the vaginal swab culture during infection, will come to know the exact microorganism causing infection and can get treated properly and repeat the culture after treatment so will to know whether it's cleared complete.Make sure that the perineum is clean and dry always.Check wether you are diabetic/ any vitamin deficiency. Use condoms Everytime if u are sexually active.Get one Scan and thyroid test for you irregular menstrual cycles and meet the nearby Gynecologist.Reduce your weight is obese.