Thankfully I have never had to worry about it...daughter has enough American Indian in her that she turns a beautiful toasty brown even with sunscreen... oldest is auburn haired and has had his share of sunburn. Never blistered though. We always sprayed white vinegar on his shoulders - stung quite a bit, but helped the pain afterwards.

Did have an episode with some hot ravioli with daughter - put some special cream on it I think it was called silver nitrate? It did the trick - no scars.

__________________
A blessed thing it is for any man or woman to have a friend, one human soul whom we can trust utterly, who knows the best and worst of us, and who loves us in spite of all our faults.