Ive notived my young adult hen has been sneezing recently, she also has a runny nose and i can hear her congestion (almost like a gurgle or clicking) when i put my head near her throat. I have two hens and shes the smaller one, she also has a small bald spot on her neck i assume from the other chicken being mean. She also lays eggs with very thin shells that usually break (I've upped her calcium because of this). Im very concerned she may have some kind of resperatory infection. I doubt i could take her to the vet so I'd like to be able to treat her at home. Please help!