On Saturday I went to the doctors because I had a uti. The doctor prescribed me cephalexin 500mg for 7 days. I have one more day with the medication although the pain of urinating is gone, I still have that sensation of a full bladder. Also I still feel like I urinate more than I usually do... To make things worse I even gotten a yeast infection from it. Do you think that the medication didn't completely do its job and should try another course of treatment?