Sunburn causes skin sensations that many of us are all too familiar with: stinging, burning, blistering, peeling, and, of course, that hallmark redness.

But why does sunburn happen? And are there any health risks that last after a sunburn has faded?

Dermatologist Saira George, M.D., answers these questions and shares how to prevent and treat a sunburn.

Often, burns are associated...