Trey,
What I meant was that if your one older hen has it, since its contagious and they are probably together right?, that she might have caught it too, IF its the pox. On the other hand, I have no idea how to tell if they are just pecking each others combs. What a problem!
I would definitely make sure they all stay dry (I think damp, muddy conditions make it worse, sometimes carried by mosquitoes too), and be puttin iodine on the one hens comb for sure.
Make sure they are staying hydrated (like give them watermelon rinds with quite a bit of watermelon left in it, any kind of fruit with lots of water), that kind of thing, keep them very clean, etc, to keep up their immune systems so they can fight this off, even if its not fowl or chicken pox, they need their strength so they can fight whatever it is off. The way I hear it, it runs its course, but healthy birds have a much better chance of shaking it.
Zoolander is the one with the eye prob? Hope it gets better, like the other poster said, they may have to put one of those cone thingies around her head (like you see the dogs sometimes wear) to keep her from scratching and hurting herself. If not...you may have to make one yourself. good thing your inventive....
Good luck
Jill