Just a few weeks ago I had taken my cat, Shadow, in for her yearly shots and had her checked for worms (which did come back negative). Then in the last few days, she had started to clean her hiney more often and then started using her litter box more. I called the emergency vet in another town in my area and they said that if she got any worse to bring her in as sounded like she had a UTI. Where I take her in in my town opened at 7am and took her in pretty much right away, but they had to call the vet in as they don't come in until 8. Well, it did come back to having a UTI, so have to switch foods to the prescription kind (Hill's) S/D and then to the C/D after the first bag is done and was also given most food as well. Which I'm surprised that she took to both right away. Have to have her on Orbax 0.8mls once a day until the bottle is gone, which is a 20ml bottle. UGH! She's going to COMPLETELY hate us as that's about 25 days! She was NOT a happy camper with either visit as she got quite stressed as her hears got quite red. I've NEVER seen them get that red before when had taken her in previously for shots or to get microchipped. But my main question is that with anyone who's gone through this with their cat, how often do you clean out the litter box? I mean take it and dump out the litter and put new in? Shadow is the only pet in the home. This is Shadow.