To protect your pout:
-Use lip products with an SPF 30 or higher.
-Options abound, from Shiseido's high end Sun Protection Lip Treatment SPF 36, $19 at Sephora.com, to Banana Boat Aloe Vera with Vitamin E Sunscreen Lip Balm SPF30, $1.79 at drugstore.com.
-Avoid petroleum jelly, high shine lip gloss and baby oil (on your lips or anywhere else) when you're in the sun; they attracts UV light and can intensify damage to your lips.
-For any new growth or bleeding on your lips, see a dermatologist, pronto!