It is extremely cold right now in PA and even though we keep a heat lamp on to warm up the coop, I have noticed that 2 young hens will not leave the nesting boxes. I assumed they were cold and the boxes were warm and did not think anything of it. After a 2 days of not wanting to come out, I forced them out only to discover that their eyes were sealed shut and they were unable to see. I immediately put medications on the eyes and they opened, the birds walked around and drank and ate but went back into the nesting boxes. Again the next morning the eyes were sealed, I reapplied the meds to the eyes again and the hens ate and drank. Now the eyes are open, no sign of infection or respiratory problems, but the hens still want to stay in the nesting boxes. When I force them out they eat and drink but now sit on the roosting bar and both shake their heads and scratch, almost like something is itching or biting them. I thought maybe lice or mites and treated them and the nesting boxes, today they went out with the group but still are rubbing their heads and scratching. The one hen does not look sick, eats a little but the other does not want to eat is listless , just scratches away at herself and goes back into the nesting box. I feel so bad for them and have no clue what is wrong., there are no chicken vets around so I am hoping that someone can give me some advice.please!