Had a bladder infection about five months ago & the meds didn't work. I took cipro for two weeks, then bactrim & zithromax. My whole life I have been immuned to a lot of antibiotics. I had the burning when peeing, adominal pain, lower back pain & a itchy urethra. Doctor examined me & said I had a bladder infection but I drank plenty of water & cranberry juic. Idk if it is uretheritis, prostatitis or interstiak cystitis. Doctor & urology keep saying all is fine & no imfection after every urine sample. I need help.