Plan your outdoor activities to avoid the sun's strongest rays. As a general rule, avoid the sun between 10 a.m. and 4 p.m. Wear protective covering such as broad-brimmed hats, long pants, and long-sleeved shirts to reduce sun exposure. Wear sunglasses that provide 100% UV ray protection. When outdoors, always wear a broad-spectrum sunscreen with Sun Protection Factor (SPF) 15 or greater, which will block both UVA and UVB, and apply it thirty minutes before sun exposure.