I tried the doctor-prescribed medication to no avail. I tried the boric acid up my hoo-ha. The only thing that worked was D-Mannose, a natural supplement. I used it for 5 days straight, took 1 by mouth every 2 hours. It cleared up. Wanted to post this to help others who may not have had success using different routes. I plan to continue to take it as directed, once in the morning and once in the evening as a preventative measure.