how to get rid of sun burns fast?How to get rid of sun burns fast? really fast?

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Sunburn: First aid
Signs and symptoms of sunburn usually appear within a few hours of exposure, bringing pain, redness, swelling and occasional blistering. Because exposure often affects a large area of your skin, sunburn can cause headache, fever and fatigue.
If you have a sunburn:
?1/2 cup (about 120 milliliters) of cornstarch, oatmeal or baking soda [...]