RE sunburned scalps - I too hate hats but usually wear one. O do take a good handful of the "goop" and smear it all over my head - makes my hair look like the 1950s, but I don't burn.

Last burn I got was on the BACKS of my ears - I remembered to do the edges, the head behind the ears, the fronts etc, but missed a spot about the size of a dime on one ear, and a nickle on the other