I have two cats that have some kind of respiratory bug. I've taken them to the vet twice in the last 4 days for antibiotics and Iv fluid. They seem a little better, but are still refusing food and water. Does anyone have any tips for at home care? It's getting really expensive taking them back to the vet every other day, and I don't know how much more I can afford. They just got their physicals and updated vaccines a week ago, and they're indoor cats. I don't know how they caught this.