YES, there is an EXCELLENT natural method, way better than cranberry juice. I suffered from a persistent UTI for years, so I'm a bit of an expert.
According to my naturopathic doctor, most UTI's are from e-coli from the rectum, and can be easily knocked out with D-Mannose, which is just a sugar, that makes the surface of the UT "slippery," so the e-coli can't hold on. It works! My naturopath had me take it I think 6x/day until painful symptoms disappeared, and then 3x/day afterwards for 2-3 days.
http://www.ehow.com/about_5415769_dmannose-urinary-tract-infection.html
And for comfort if you're hurting, just drink a ton of water, or any fluid, right away. The more fluid moving through you, the more comfortable you'll be, until the treatment kicks in. Won't take long.
I've also given this to my 3 year old daughter without hesitation, when I suspected a UTI, since they can be so painful and also dangerous with kidney infections. It's a good remedy to have in your home medicine kit!
Follow Mothering