One of my chicks has a very slight runny nose and a sneeze. Today is the first cool day of the season, and they are in my garage. I'm worried it might have gotten a chill. I'm going to put cardboard up around the brooder today to stop any breezes. What should I do for the runny nose? The chick is still active and bright eyed, but I don't want to wait until it's near death to do anything! I'm also slightly worried it might have gotten IB from my hens. (I'm fairly certain that's what they have.) I've been careful to always care for the chicks before going out to the hens, and always washing my hands, but with a toddler running back and forth it's not out of the question for them to have become accidentally contaminated. If it is IB, should I medicate the chicks? I have Sulmet, Tylan 50, Corid, and GSE. I can't isolate the sick one because I can't afford to buy another brooder set-up. I'm sure the others have been exposed too, anyway. Any thoughts?