As soon as you notice you're toasted, take this four-pronged approach:
1. Pop two aspirin, which inhibits the prostaglandin release that can increase redness.
2. Take a cool bath or shower. A sunburn increases blood flow to your skin; cold water reduces it.
3. Slather the affected areas with an aloe gel, like Aubrey Organics 100% Pure Aloe Vera Gel. Avoid aloe products that contain alcohol, which can dry skin and increase peeling.
4. Solemnly swear to always apply sunscreen (and reapply, every two hours) when you're in the sun.