Nuvega Lash If you tend to get cold sores, avoid touching and picking them. This increases the healing time and could lead to infection. Cold sores can yield scars if you do not take care of them properly.Eliminate smoking from your routine during the day. Smoking ages your skin years before its time because it restricts blood flow and removes needed oxygen. It also depletes many other nutrients such as vitamins and minerals. Collagen and elastin, basic skin elements, are also affected. When you quit, you'll look better and live longer.