Hello I am in need of help/advice/experience. I recently had a thread about my pekin female 8month old coughing. She has been coughing well over 3 months now. It seems to get better and then get worse .. Well the last 2 days now her quack/honk voice is changing. Kinda like she's losing her voice. Her coughing is now sounding more silent and not loud anymore.But you still see her chest move up and down. After shes quacking alot she now makes a grunt noise,like shes stuffed up or something. Theres no other symptoms. No nasal discharge, She eats,drinks,baths,plays with our other 5 ducks she grew up with. None of them have any symptoms. I can't afford the vet yet as its bad timing. I am on day 2 of tylan50 1/2cc orally. She has plenty of water to dunk head in so thats not a issue. I always clean out wet shavings and straw everyday. I clean fecal up everyday. I am stokedas to whats going on. Am i missing something here? Could this be aspergillosis? Does aspergillosis progress slowly over a period of 3 months? Whatever it is,it doesnt seem contagious since the other 5 show no signs of this. Thanks for reading and I hope someone can help me. I wanted to add that I purchased oxine. I read stories on it. I have misted her for 30mins the last 2 days.