$3.$ To prevent sunburn: Avoid the sun between $10$ AM and $4$ PM Wear a hat, especially if hair is thin on top of the head Reapply sunscreen every two to three hours, or more if swimming Remember, sunburns can happen on cloudy days Use sunscreen with SPF $15$ or higher $30$ minutes before going outside Try to stay in the shade Use lip balm that includes sunscreen Put on sunglasses with $100$ percent UV protection True False