This little guy was picked on by a rooster when I attempted to add four new chickens to my original four. He/she got pecked in the head overnight and I finally couldn't stand it (Even as a novice I knew there was going to be some pecking order establishment/violence), I put the poor little guy in solitary. It's been a couple of days and his head has scabbed over, but his bottom is gross. It looks all sticky, kind of like crusty butt, but he still poops a lot. What's up with that? What do I do?