When you're tired in the morning, it's tempting to hop into a hot shower, and let the steam ease you into the day. But that's actually going to make things worse. "Hot water increases swelling and accentuates puffy bags," says Jessica Wu, M.D., assistant clinical professor of dermatology at USC Medical School in Los Angeles. Instead, Wu recommends holding a washcloth soaked in cold water over your eyes for a few minutes. "Cold helps shrink inflammation and puffiness and will help shrink veins in your eyes so they'll look less bloodshot," she says. Plus, the invigorating temperature will help wake you up.