I just got back in to raising Show Cattle again since my son is now old enough to show. We have a calf that has been coughing off and n for the past couple of weeks. He is still on feed and his temperature seems to be fine as well. I did see a little mucus come out of his nose yesterday but that is it. Any suggestions what to do? Is there an over the counter vaccination I could give him? The vets office is a pretty good haul from where I live but if I need to take him I will