I am very new to raising chickens and now my 5 month old hen has a problem. We don't have any vets near us that see birds, let alone chickens About 3 days ago I noticed that she wanted to keep her eye closed. I've inspected it and can't seem to find an obvious injury. I figured if it was just irritated it should be better by now. Is it safe to put drops in it? Anything else that I should be looking or watching for? Any help would be greatly appreciated. Thanks in advance!