The vet should be able to help you with a method for helping prevent UTI recurrences. Once a cat has a UTI, they do tend to have them again. There are special prescription diets for cats with UTI, that help avoid a repeat episode. I've known of some breeders who used to add sodium ascorbate powder, the non acidic form of Vitamin C, to their cats food every day, because Vitamin C has some natural antibiotic properties and also is acidic. There are also supplements that the vet can give you, that you can give the cat to help avoid UTI attacks, these supplements help keep the urine acidic, among other things. Another thing that can help is to make sure the cat is drinking plenty of water. The more water the cat takes in (within normal range of course, extreme drinking is a sign of other major problems), the more the cat's urinary tract will be flushed out and the more dilute the urine will be. You are fortunate that the cat you're dealing with UTI in, is a female. The urethra of a female is big enough that its very rare for a female ever to be "plugged" by mineral crystals (which build up in the bladder of many UTI cats). A male however, even a neutered one, has a much smaller urethra and thus, can rather easily develop a mineral plug to the point where he cannot urinate at all. A plugged male cat is an extreme life threatening emergency. Cats with UTIs often will try to get your attention by urinating in the wrong places. My mom's cat once went up to the newspaper she was reading, and urinated on the paper. He'd never done anything like that before. My mom saw that the urine had blood in it, and called me to ask me about it. I took the cat to the vet to have his UTI treated before it got any worse. The quicker you treat a UTI, the better. UTIs left untreated only get worse, cause more damage and toxicity to the cat's system, and especially in a male, can be fatal. The vet should be able to give you a regimen of prescription food and/or supplements and recommend other strategies to keep your cat from having UTI recurrences. I've always noticed that most of the time when cats get UTIs, its usually in the autumn season, although I don't know the reason or reasons. I've known quite a few other cat fanciers who have observed this same thing too.