About 3-4 days ago, my hen presented with swelling around her eye. It progressed quickly to being swollen shut. She has no signs of respiratory distress, and no nasal discharge. The two days prior to discovering the swelling, it was crazy windy with lots of dust and debris flying around. So one thought is a foreign object got in there. We have yet to find it though. The next thought is she go a direct hit to the eye from one of the other hens pecking at her. She doesn't have any other signs of being pecked though(but that doesn't mean it didn't happen). When the swelling started, her eye was clear. Now, however, she has this cloudy film over her eye when I open it. Is this infection(pus) or her third eyelid(nictating membrane)? If it is infection, what recommendations are there for treating it? There are no chicken vets that I have found in the area. If it is her nictating membrane, is it injured in the upper right area?