empink
If it is a bacterial infection causing the UTI, then could take 3-4 days before the antibiotic kicks in (if the right one for the organism has been prescribed). If it is viral, it will be down to your own defences fighting it off. If you don't see signs of improvement in the next 24 hours...go back and hassle your GP.
Easy to say, but try not to stress...try relaxation techniques. The less stress the quicker you will return to normal.
Take it easy, and I hope you feel better soon.
Cheers
Tony