Some skin care products contain aloe vera, green tea, or chamomile that can help soothe inflamed skin. Whether it's acne or another infection, antibiotics may be the best way to control a spreading strain of bacteria and therefore reduce redness by eradicating acne. You can also try to calm the redness and swelling by applying ice or a cold compress to your skin. If you're going to do this, first gently cleanse your skin and then apply the ice or ice pack to a clean cloth (don't put it directly on your skin).
While some reactions may be the body's way of coping, redness can be due to exposure to air pollution, UV rays, and overreactive skin care products that aren't right for your skin type.