Harvard Health Tips

Hydration during air travel

In flight, the relative humidity in most commercial aircraft cabins is a low 10% to 20%. To combat the drying effect on your nose, mouth, eyes, and skin, drink plenty of water while you're in the air. You may also want to wear eyeglasses rather than contact lenses, keep a bottle of natural tears handy, carry nasal saline spray, and use moisturizing lotion on your hands and face. …

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