Hello! I have a white leg horn, awhile ago she got into a fight with other chickens in the coop, since then we had to pull her out of the coop. In the past when this started showing, she had what we think was fowl pox.
We didn't know what it was, I'm sorry we got a few chickens awhile ago and never saw this, and were concened because this was the only chicken that had it showing, should we do anything or let the feathers grow back in there own time.
It's alright, unless there's something I'm missing that's just her earlobe. Google chicken earlobe and they'll be pictures showing, there's nothing you need to do. It's normal. Some chickens have different colored ones, I did a quick google search to check and white leghorns do have white earlobes so this is all okay.