Ok, here’s my the line up for chickens in respiratory distress. Tylosin powder 3 times a day. I gave two tiny pinches in 3cc of water with syringe. Without the Tylosin my chicken would be gone by now, so this one thing is very important. Exact baby parrot feed 50cc 4 times daily for support . I used a feeding tube. Albuterol inhailer if you happen to have one. Place plastic bag over chickens head give two hits wait one minuet then remove bag. Gatorade 3cc, 4 times a day. Keep her warm and away from other chickens until she recovers. Good luck.