'm 85 years old and have had UTI's for many, many years. I cannot use Bactrim because I'm on warfarin for DVT"s. So far Amoxicilin has worked for me. I would start another UTI around a month after the last one. (sometimes sooner) FINALLY I came across a senior forum about UTI's and D-MANNOSE (i use AZO brand) and since starting it, I haven't had a UTI this year which has never happened before. People swear by this and now I do too. I also have Asthma and COPD and on Symbicort twice a day and Albuterol for flare ups. Once in a while I have a problem with a sore mouth (thrush) and then I rinse with baking soda and water and it goes away after two rinses. I did notice an increase in UTI after starting Albuterol some years ago but D-Mannose has taken care of that. I also have a rinse bottle I use every time I go potty. I put a squirt of peroxide in a pint bottle of water. I'm saving up to have a Bidet installed. I did get tired of being asked if I wipe front to back though.