Run cold water over the burn as soon as it happens to reduce the tenderness of the area later on as well as how deep the burn goes. Burns spread until they are stopped, and the cold water will stop the spread. For a minor burn, 10 minutes will do fine, but for more severe burns you should leave it in up to half an hour. For sunburns, use a shower.
Take some pain relievers for comfort.
Apply a burn cream to the burn. Rub on with clean hands or use a cotton swab. For minor sunburns, an aloe works well to heal and alleviate discomfort. There is really nothing more you can do for a minor sunburn, except wait.
Cover with a bandage to prevent the sensitive skin from tearing.
Rub on an antibiotic ointment the next day and keep covered for at least two more days. Apply more ointment as needed.