I've only had chickens a year, so I'm still on a steep learning curve. I spotted my hen yesterday with swollen flesh under her eyelid. My daughter finally caught her today. We have her in an isolation box in the garage now. The flesh yesterday looked pink and healthy, today it is taking on a gray blue tinge. Otherwise, the eye looks healthy and she is acting normal, eating and drinking. There doesn't seem to be any weeping, and I'm not observing any coughing or sneezing that I would expect with a respiratory virus. I did notice that side of her face seems swollen as well. I didn't know if it might be an injury or what. I did treat with Vetrimicin spray, but don't know what else to do. Sorry for the bad pictures...she did not like me taking them!