Hi one of my bard rock hens woke up today to the sniffles and congested breathing. This is the first I've had a chicken show these signs. I have her isolated in the house. So far I bought some vet rx for respitory issues and have put some on her head, in water and on her mouth. I just did this an hour ago. She is showing interest in scratching and has been eating. Do you have any other recommendations for treatment. Thanks.