I suggest adding D-Mannose supplement daily, I take one morning and night. It's a sugar that isn't like normal sugar, and coats the bladder lining with protection from the bacteria that is always in there in some of us. I am also now having to take daily maintenance levels of methanemine, an odd antibiotic. This after one infection without symptoms lead to sepsis and a long hospital stay I am still recovering from after three months. Sepsis can have an extended syndrome affect some. The D-Mannose is harmless and not always prescribed by older doctors. There are a few alternatives to the maintenance drugs to take from now on and some are only weekly. A specialist, not the ordinary urologist, will be your best shot. Good luck, it's a life altering thing to have recurring UTIs and I am now 78.