One of my girls has some swelling on her comb and a white area. Not sure if the discoloration is from the pressure or something else. There is tightness in the area but nothing that feels hard. It doesn't seem to cause any discomfort or pain. The comb is warm but not feverish. Its been this way for weeks. At first I thought it was a bug bite, but when it didn't go away I started looking for an injury, like maybe she had a splinter in there. I'm pretty sure there are no foreign materials in there. I've looked online and can't find anything that seems to fit. Any suggestions are helpful. She has recently had a bumble removed from her foot.