I have a pullet that has been crippled since hatching so she can't move her neck very well, and seems to lack many chicken instincts. Because of this she only grooms her chest and leaves everything else, and she doesn't dustbathe. I don't know why I wouldn't have thought to check earlier, but I realized she likely would have parasites and when I checked she was infested with lice! Very disgusting. Immediately I very thoroughly checked all my other girls (much to their annoyance) and none have a single louse. Very clean, if I do say so myself. They have a nice sand and dirt and DE dustbath which they use regularly, excepting the cripple Dot. I didn't really know what to do, so I put on some gloves and liberally sprinkled DE under all her feathers (probably a little too much). I was wondering what I should use to get rid of the lice and how I should prevent Dot from getting lice or anything else in the future? Should I try to give her dustbaths? Thanks!