I too suffered monthly with yeast problems for years. I switched my diet. You could probably have a yeast intolerance. There's a book called "The Yeast Connection", I don't remember who it's by. There's a questionnaire in the book that I took that told me that I was probably allergic to yeast; and a diet that I followed religiously because I was so desperate. With me, medications didn't work any longer and home remedies didn't work either. This diet did! Good luck.