I used to get frequent UTIs. I went to the health food store and asked for advice from the homeopathic expert there. She told me to get Cantharis and put one pellet under my tongue at the first sign of a UTI. Only one pellet, one time. Not 2-3, several times a day, as the packaging recommends. I made the mistake of telling the homeopathic lady that I had deviated from her recommendation and take 2-3 pellets, and I got bawled out.
This method works most of the time, if I catch it early enough. I drink lots of water too. If you don't react immediately, it won't work. Once you're hurting, you need antibiotics.
The thing that helped me the most is advice I received from my OB/Gyn: Urinate both before and after sexual intercourse. I am now diligent about that and I haven't had a UTI in about a year. Also, he gave me a prescription for antibiotics and said to take one immediately after, ahem, especially strenuous activity.
(I'll not elaborate on that!) I did that for a while - until I ran out of pills. Don't seem to need them anyway.
Be careful taking AZO Standard and other things that relieve the pain. Only take it while you're waiting for the antibiotics to kick in - maybe 24 hours. After that, the burn should have subsided.
Hope you feel better soon.