Harvard Health Tips
Combating airline dryness
Because there?s so little moisture at high altitudes, the relative humidity in most commercial aircraft cabins is a low 10% to 20%. To combat the drying effect on airways, 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, use nasal saline spray, and use moisturizing lotion on your hands and face.