What is the best cat food for a bengal cat with Cystitis? Is there any treatment?

Is this chronic or acute cystitis? I know my vet cleared up my cat's cystitis very easily. But she only had it once. I'd think that a Special Needs cat would come with full instructions on feeding and treatment! The people or place you are adopting her from should tell you everything you need to know Before you take the cat home. Be sure to bring a notebook and pen and take notes if it isn't already printed out. I would also want to talk to my vet when I take her in for a check up (within 24 hours of adoption) to see if I could learn more.