Even if your family gets along as well as the Huxtables, too much holiday togetherness can be, well, too much. The stress of bickering with your siblings, dealing with your in-laws, and ignoring comments from clueless relatives can take a toll on your mind and your face. Prolonged anxiety and tension can cause everything from zits and premature aging to rosacea and eczema flare-ups.
The Solution: Since hiding in your room during Christmas dinner isn't an option (at least not for anyone over 13), you need to find ways to stay relaxed during the holidays. Start by getting 7-8 hours of sleep every night, eating plenty of healthy foods, and keeping your alcohol intake to a minimum. If you're not already into yoga or meditation, now would be a good time to try them out, since it's crucial to keep your stress levels low.
For more info on how you can protect your skin from the effects of stress, read Scary Ways Stress Can Ruin Your Looks.