I have a 3 year old Speckled Sussex Rooster, he has had a respiratory infection for over a month. I have treated him with Duramycin-10, and Vetrx with no luck. He did seem to get better, but when it got cold again. It started back up. He has been off any medication for about a week now. You can hear him wheezing when he breathes and he will cough. I also found out today that as of January 1, 2017 you can't get Duramycin over the counter. You have to see a vet. That's about $125 for a visit! I'm not sure what to do know. I have had him by himself for over a month. Need any suggestions. Thanks for your help.