I recently got my very first chickens, I got them at 1week old, and have had them for 3 weeks today. They are all different breeds, the one I am concerned about is my Ameraucana. She has a really swollen eye. She is eating and drinking normally, acting normal as well. She is the biggest in my flock, so I am not sure if one if the other chickens could have pecked her or not...I am very inexperienced so I looked all over these message boards trying to find out what to do myself but all the posts about swollen eyes are for much older chickens. At 4 weeks old should I get the Tylan 50? If so how much how often? I don't see any scratches or scabs, it was just gunky and when I washed it she opened it partially, there is no visible drainage. But under her eye is very swollen. I don't see any bubbles at all, and just noticed this today. I am posting a pic of her good eye and the swollen one, any help would be GREATLY appreciated.