yep my DD 2.5yrs has/had one.

hers grew to the size of 2 thumb nails next to each other.

her paed told us it would be gone by 1 but its still there. its faded and broken up a lot, id expect it to be gone within the next 18 months going by how long its taken to break up and fade.

im not sure if anyone has told you be it will start going grey when its breaking up.

we have been told to expect a little white scar where the spot was once its fully gone.

DD's is on her thigh so not really a place to be concerned, i have a friend whose daughter got one right in the center of her forehead!

I too was worried about DD's hanging around forever but apparently they all do eventually go, so our paed told us.