I have a 12 week old BCM who has a small growth developing under eye. Could this be an abscess or? Also the tips of the comb are turning black. What could that be?
It could be a cyst or an abscess. How long has it been there, and has it grown any? Is it hard or soft? You could try disinfecting the lump and lance it, and try to squeeze out any solid pus. The comb tips could be dark from brushing against wire fencing or pecking.