Today, I have a positive urine culture for Klebsiella Pneumonia. Have been on cipro for 3 days waiting for the results of the culture. I was also treated 3 weeks ago with augmentin for a post surigical wound infection after mastectomy. The wound is still not totally healed either. I m worried that these two infections may be related. My pcp wanted to send out macrobid for the uti, but wondering if Keflex would be better. I ve had a c.difficele infection in the past after multiple abx for uti two years ago, that weren t being treated properly, and Keflex worked well. So worried about several issues and asking for your opinion.