Feline Urinary Tract Infection Feline Urinary Tract Infection Won't Go Away!?

Feline urinary tract infection won't go away!? - feline urinary tract infection

Our cat of 3 years has a bad urinary tract infection had one months long. The vet tried 3 different drugs, and seems to improve for a few days, but relapses and begins urinating blood again. We are at the end of our mind. Vet said that he no bladder stones and non-diabetics. We exchanged a special diet cat litter, which is quite natural, but nothing helped. Every professional advice would be welcome, because we by a veterinarian, who can not understand, are destitute. O (