I have struggled with candidiasis (yeast infections) for decades, using repeated OTC treatments and prescription medications (Diflucan, over-the-counter Canesten, etc.). I was just about at the end of my tether with the most recent yeast infection, when I saw the reviews for Azo Yeast. I immediately purchased it and am so glad I did! I take it every day, as directed, and have not had ONE yeast infection since starting it! I am absolutely delighted with this product and would recommend it to anyone who has a chronic, recurring yeast infection. It truly does work!