My newborn baby girl had received a red, dry semi-circle ring above her left temple at birth due to the vacuum forceps needed to deliver her. Now, about 5+ weeks later, I've noticed the scarring has hardened and has a yellow/green color. My Pediatrician couldn't identify what it was, but assured me it wasn't infected since there was hair growing from it and there was no redness around the area at all. Should I treat this as cradle cap at this point and see what happens from there? Any thoughts as to what this could be?