Hi, NC for this. Noticed this on toddler ds foot the other day. It's not raised and was quite red when I first spotted it and is now slowly fading but still visible. Doesn't seem to bother him when it's touched and he's well in every other way. No idea what caused it and no other injuries. What one earth could this be? Aibu to be a bit worried? Google isn't offering much in way of help.