Hi... my chickens are sick too. First time gaving chickens and I am not sure if I am doing it right. They started sneezing and now they are coughing and breathing with a gurguling/raspy noise... only one showed swolen around her eyes and some discharge from her nistrils and was very quiet and did not want to eat... but seemed to improved this morning. The rest of the flock are eating and drinking well and beside the simptmas they seem al good. I read some staff online and I think they have a respiratory infection. I bought Tylan 200( the only one i found at my tracto supply) and I am giving 1cc to the big hens and 1/2 cc to bantans for 3 days already... ( i am planning to do 5 days) they improved the breathing noise but the snnezing and coughing won't go way. So i have some questions and I really appreciate if someone could help me. 1. Am i doing it right? 2. Is there any withdrawal period for eggs after tylan? Thank you all very much.