I have a single chick that hatched 4 days ago. She has been inside with me from day one as I managed to catch my first ever hatch. The chick was attacked by the Mama hen the second she cleared the egg, so of course I snatched her up did some research here and she's been good with her scalped wound healing. This evening however I noticed this knot looking thing on her shoulder. It was not there this afternoon. Any ideas? The injury on her head I put Betadine on once or twice and since I've been putting triple antibiotic ointment at least twice a day. Could this be a reaction? Any ideas or help would be greatly appreciated!