8 Essentials for Healthy Travel

Travel stress messes with your immune system. "Add dry plane air and you have a recipe for getting sick," says Travis Stork, MD, co-host of The Doctors. A spray keeps mucus membranes moist and less hospitable to germs.

Sure, you like how a manicure looks, but it's for safety, too: Some studies show that longer nails harbor more bacteria, upping your risk of spreading them to food or skin. Trim to a maximum of one-eighth of an inch beyond your fingertip.

Go with various sizes, no peroxide or ointment needed: "Soap and bottled water work just as well to clean cuts and fight infection," says Nancy Snyderman, MD, chief medical editor for NBC News.

"Ibuprofen is a great choice for easing pain, soreness and inflammation from sprains, arthritis or other issues," says Dr. Stork. It's especially useful for the active and adventurous.

A must-have for soothing sunburn, this cool gel also calms itchy bug bites and blisters after a long day of sightseeing. It's good for zapping blemishes, too.

Not only does it alleviate allergies (curse you, ragweed!), but it can also save you a trip to the doctor if a rash crops up.

Bonus: Popping it 30 minutes before bed might help you snooze if you're jet-lagged.

A one-stop wonder! Use it to wrap a sprained ankle, put pressure on a deep cut or even securely tie up your souvenir-stuffed luggage.

Skip the antidiarrheal; a more versatile med, like Pepto-Bismol, slows the growth of tummy-troubling bacteria, relieving diarrhea, upset stomach, nausea and heartburn.