Earlier this month our original free roamer Casper got a skin infection, I took him to the vets got the shot, the clavamox pills and brought him home. He healed, then it came back, so went to the vet, got the shot, got the pills, doing great right? Well... we think he brought home a viral infection from the vets office, now all 14 of the indoor cats, and two of the indoor/outdoor cats have gotten it. This is hard since the indoor/outdoors don't like to use litter boxes and pick fights if they can't go out so... I have separated the indoor/outdoors into their own rooms, away from the others but with each other. Went back to the vets got more clavamox to help with the symptoms that the cats are showing. All of the cats have wispy breathing, and runny noses, sneezing, coughing, and now just in the last day vomiting. They are all eating and drinking water, no more or less than usual. I am wondering if the clavamox may be making them vomit, as it was not a problem before they went on it. Any experience with this?