I have a 4 day old chick that keeps trying to groom and peck it’s own rear. I’ve checked it’s vent and there isn’t poop or anything crusted on it, but it is a little red and seems irritated compared to the other chicks (I checked a lot of feathered butts today to compare). I used a warm, wet cloth on it to try and soothe things and put a dab of blu-kote on the skin/area with a Q tip but any ideas on what’s going on with this little one?