lucid I used to get very frequent UTIs until, in a desperate search for something, anything that worked to prevent them, I found D-Mannose on the internet. Normally I am sceptical of many 'alternative' remedies but the science behind this has even convinced my former scientist DH. It's expensive but I take a daily maintenance dose and whereas I was having several UTIs a year, I now have one - if that, and generally an increase in D Mannose is enough to knock it on the head. The difference is that it doesn't kill the e-coli responsible for the UTI; it attaches to them, preventing them from adhering to the bladder wall. Then it's a case of weeing them out, so to speak. Try googling it and read about it. It's been a revelation for me and I can't understand why it's not more widely known. Other remedies - cranberry, herbs, and none of the usual personal hygiene methods - none of those has been effective for me in preventing attacks. If it was prescribed by GPs, there would be far less need to rely on antibiotics. I'd reached the stage when several of them no longer worked for me, and there is now only one I know of which is effective, should I need it.However, I've only resorted to an antibiotic once in the last 4/5 years 
I think more research is needed on alternatives to antibiotics. There is even more desperate need now!