 [ Symptoms ] how long should a uti take to clear up while using azo i have been taking azo for my uit for over a week and my uti has not cleared up yet and i was wandering how long it takes to clear up while taking the azo pills [ Disease ] azo may not cure a uti as you are experiencing azo is mostly used to control the symptoms burning from a uti not the infection you body would have to cure the infection using your immune system since you are not improving you are likely to need some appropriate oral antibiotics so please see a medical professional