My sister has a cat that she believes to have a UTI. But now the vets office is closed and will not be open again until Monday. I remember a while back hearing that vitamin C will help cats with UTIs. But I do not remember where I read that. Does anyone know anything about this? If so I would appreciate your help. We do not want the cat to be suffering, he is not acting hurt but is peeing all the time and only a little bit here and there. Litter boxes are cleaned out daily several times so he has no reason not to use them. But he chooses the carpet instead. We are looking for a way to get him some relief until he can get to the vet asap on Monday morning. Thanks.