The polar vortex has got many of us popping allergy meds like crazy. Even people who don’t have allergies, though, can benefit from the pills. It’s something of a celebrity secret: Taking an antihistamine the night before a big event can prevent swelling and keep circulation moving, reducing puffiness and dark circles in the morning. Think of it as an emergency beauty treatment, not a nightly routine. If you’re going to start a habit, make that habit going to bed earlier.

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