Ok so I have a hen that is just about a yr old. Last week she started sneezing and wheezing. I got super worried and watched her for a bit. She had no other signs of distress. In fact she looks like her normal self. Eating, drinking, still laying and dusting. She feels well enough to chase my other girls out of her favorite dusting hole. Friday morning rolled in and the wheezing was worse then I had heard before. I brought her inside and started treating her with Oxytetracycline. Today will be day 4 and I am not hearing any improvement. Again she has no discharge from her nose or mouth or eyes. She is up and at em everyday and she is still laying everyday. She has no fever either. Can someone help me to figure it out? We are in Virginia and I thought maybe it was pneumonia now I wonder if it was something like allergies. I do have a horse who is allergic to hay. Any thoughts or advice would be great. Just at a loss for what this could be.