Lufthansa added cabin humidifiers, and trumped the seat-to-flatbed race by adding both a flatbed and a chair to each first-class suite on their 747s.

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Steam from a hot shower can also help, though some doctors warn that parents need to be careful with humidifiers, since they can develop mold.

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It also introduced the "Hyatt Has It" program whereby Hyatt hotels stock everything and anything a traveler might have forgotten to pack, from deodorant to humidifiers (and every color of nail polish under the sun).

CNN: STORY HIGHLIGHTS