one time I spent $1900 for visiting the vet because my boy cat's UTI, the treatment was not cured completly, but very painful. I used D-Mannose and Apple cider vinagar cured my cat , and now I give a couple of drops of apple cider vinagar in to his meal (must be wet food, NO DRY FOOD EVER) every day, no problem since, he is very healthy and active, his coat more beautuful too.
hope this help all our fury friend and their parents.