Raw Food and Infections (Specifically UTI)

Hello!

I have a chronic problem with urinary tract infections, and since going raw in April, I have not had much of an issue until recently - which is too bad because I thought I had my problem nixed.
I have gotten one 3 weeks ago and had to go on antibiotics, and since being raw I was VERY VERY sensitive to them - they pretty much stole any vitality I had gained from being raw and sent me back to how I used to feel (crappy).

And now, just when I'm feeling better (from a cold, and being on probiotics) I get another one! And I have no idea why - possibly from being in a hot tub for too long on the weekend, but I don't know. Usually I only get UTI from sex.

So here is my question. Anyone else have this problem and find a solution WITHOUT antibiotics? In the past I have taken a low-dose one every 24 hours if I have been having sex and it has worked wonders. More recently I have used cranberry and lots of water/no sweet fruits, etc and had luck, but it seems to only work if my sex life is sporadic.

So...any alternative treatments you can recommend for prevention (food/supplements)? PLEASE do not suggest cranberry and blueberry...I have tried almost everything that is fairly common knowledge. I have been to a naturopath in the past and also considered surgery to widen my urethra...ugh.

These are some things I have heard about recently:

+ D-Mannose
+ Functional Silver or Colloidal silver
+ Omega 7 with Sea Buckthorn

Anyone tried these with success? Silver makes me nervous a bit - I do not want to turn blue hahaha. I heard it is really good though.

And I am willing to try uva ursi. I DO NOT WANT to be on antibiotics for ever to maintain my sexlife - but I will if I have to even if I have to be only partially raw to not be so sensitive. I am not willing to give up my sex life.

Please help!