I guess I'm going to have to kill my flock of 14. Being new, I collected birds from 4 different places and threw them together over 4 months. Didn't quarantine them. Started with 1 a while back. Swollen bubbly eye. Then 1 with runny nose and bubbly eyes. Then 2 that were hacking and rattling breathing. Now poor Lucy has this. Noticed a few others sneezing. Tried tylan 50 on one. Tried oxytetracycline with the whole flock. They keep getting sick. Any ideas be great. Id hate to kill them but... I plan on ordering new chicks in the spring and don't want to get them sick. Start fresh. What do y'all think? everybody seems to be laying drinking and eating normally