I have an aggressive, nine week old Polish pullet who ended up being pecked on the head enough that some of the feather shafts broke and now her crest is pretty bloody. We took her away from the other chickens since she keeps on flying at them and trying to fight them, then getting pecked on the head again. I'm not really quite sure what to do. How exactly would I clean the blood from her crest? What exactly should I do?