My flock has been sick for about two weeks now. I made the mistake of bringing a new hen into it. They have been sneezing, coughing, and slinging snot. The bantams have been showing a little improvement after six days of Duramycin. The standard hen, (the culprit), is still sneezing. A few of the bantams are a little snotty, but not coughing or anything. Do I need a stronger antibiotic?
