... 3. I go on an antibiotic for 7 days and then Im cear only to get another infection a week or so later. I had one 2 weeks ago and was on an antibiotic for 7 days and told to bring my urine in 2 weeks later. I did that yesterday and the doctors office called to say they were sending it out for a culture. It looks much better but I guess not perfect. I just wonder if im not getting rid of the full infection. This frequent urination is driving me crazy. Im on gelique, estrogen cream, etc. - the next step will be a dilation. So nice to find this support group