Young uns, please take sunburn seriously. In my 20s & 30s there was no such thing as water proof sun screen and I got a few burns when I was having too good a time to get out of the mid-day sun. Was no big deal then since the burns appeared to heal with no visible damage. About age 50(6 years ago) permanent dark blotches, crusty dry spots, warty lumps, and lots of wrinkles started and continue to appear, even though I have been careful to protect exposed skin and limit my outdoor time to mornings & evenings for the last 15 or so years.
I wish Bullfrog 36 was around when I was younger.
Since she refused treatment, my neighbor's skin cancer will eventually kill her, according to her doctor.