One of the most important things is to learn what triggers your flare-ups and to avoid them. It may help to keep a diary of what you eat, drink, and do on the days that the rosacea appears. You should also use sunscreen every day. Pick a sunscreen rated SPF 15 or higher that blocks ultraviolet light (UVA and UVB) and infrared rays. During winter, use a moisturizer to prevent dryness caused by cold and wind. Be gentle with your skin. Use skin care products for sensitive skin, and avoid any products that scratch or irritate your skin.