So Marshmallow (EE hen) had a bad case of mites when we got her. You could see them crawling near her eyes so we turned around and went right backa nd got the powder to treat them. WE have dusted her regularly and they seem to be gone but she has a big bald patch on her bottom. It is pink and looks a little irritated. So now the mites are gone this should heal correct? How long should it take for her feathers to come back? Should we put anything on it? thanks