One of my Black Swedish Hens was broody a couple of weeks ago. She was fine up until this week. Her head has lost all of her feathers and is bleeding. She is eating & drinking. I dusted her with DE this week thinking it might have been mites. She looks aweful & is very lethargic. I am giving her antiobiotics today & will continue this for a week. I can't see any mites on her. She is emaciated! Could she have internal parasites causing this? I am going to put some vaseline on her poor head. I isolated her from the flock & am keeping her warm. Any good advice is appreciated!!!