It's been three weeks my father is complaining about burning in urine. His Dr. prescribed him medicine which is for bacterial infection. He has completed the dosage, but it didnt cured fully. Is it due to the sideeffects of his medicine?Cranberry extract soothes him but the effect is not long lasting. We will go for the check up again, but please if anyone knows any thing about it then help us. I am afraid if it's linked with worsenig of livee problem.