I've been on medication for a UTI, but it doesn't seem to be clearing it up. It's persisting on and off for months. The doctor said my lab results just showed a trace of infection, and didn't really want to prescribe another round of the meds...but they did, and though it helped for a couple of days, the burning and urgency is back. Still have 3 days of pills to go. Just concerned that there could be something more serious.