My cat had a stone 6 month ago & we dissolved it with royal canin so food dry & wet. She is having issues again and peeing outside the litter box and peeing small amounts. Took her to the vet and gave a urine sample they said it was a UTI no crystals found. put her on clavinox. ( she still on So food since her stone) day 3 on antibiotics and still she is only peeing alittle at a time 2-3 times a day. no blood in urine. I am so worried although she is acting normal. I cant afford another stone if she needs surgery.. Do you think it is another stone even though she is on the SO food only. How long would a UTI take to clear up on clavinox? Thank you for anyones help and encouragment.