I have been on a rampage to warn people about Sunscreen for almost a decade. SPF in face cream, body lotion, hell, even in hair spray!! Besides the fact that 99% of sunscreens contain extremely toxic chemicals- check out the Skin Deep database HERE for more information on what's in your sunscreen- the massive media circus about skin cancer has convinced a vast proportion of people that the Sun is trying to kill them!
Sun burn is very painful and can cause scaring if it's deep enough- but instead of slathering on a thick coating of chemicals, put on covering clothing and a hat! We have a collection of lightweight clothing to keep our kids covered even at the beach. And don't plan on going to the beach from 1-4 pm when the sun is the hottest. Seriously: plan ahead and then the sun isn't the frightening ball of fire that the media is trying to convince you to be terrified of.
... and if live in northern latitudes, it's almost 99% guaranteed that you are vitamin D deficient. The government mandated "Daily recommended allowance" for Vitamin D is a vast joke. The average Canadian should be taking a minimum of 2000UI per DAY in the winter. Minimum. I personally take 4000UI a day in the winter. Narry a cold nor flu this winter in our house ;>) Obviously getting your vitamin D from good ol' fashion sunshine is the best.... but taking a supplement is better than going without all winter long!
Vitamin D and the Sun..... it's what's good for you!