Some 20 Mule team borax...yes the stuff you use for your clothes and dishes will fix the UTI with just a pinch in some water or coffee

I would recommend coffee as the taste is a little strange better to not have to taste it

Second choice would be a good dose of real golden seal root powder the price is much higher than it used to be for the good stuff but one oz is good for a long time

Goldenseal has berberines in it which will help with the UTI as well my go to for food poisoning or other stomach/intestinal issues