Diagnosed with Klebseilla UTI 2 wks. ago. Was prescribed Bactrim. Took for 7 days. Seemed to be cleared up. Had intercourse right after, and the next day, the UTI was back. Symptoms are frothy urine, grey-tinged, cloudy color, foul odor, slight burning. Now, 4 days later, urine is not very foamy anymore, but still smelly and very cloudy and grey. Does this sound like klebseilla again, or something else? I have Macrobid that I can take (a few months old) while I await results of urine culture. The Bactrim I took didn't seem to kill off all the bacteria...might Macrobid be more effective? I get UTIs almost every month, always right after intercourse. My husband and I have been married for over 40 years, and due to these UTIs, we only have intercourse once a week. Even so, they usually result in my getting a UTI. I am so fed up with practically living on antibiotics. Pls. help. Thank you.