Hi,

My husband caught a cold a day after flying last week, and he has 3 more RT flights planned in the next few weeks, so I'm looking for suggestions on how to avoid catching colds while flying.

This recent WSJ article has some recommendations:
http://online.wsj.com/article/SB1000...985863872.html

It suggests keeping nasal passages moist with a saline spray to counteract the low-humidity cabin environment. Do you have a recommendation for a nasal saline spray?

The article also suggests opening the air vent to direct airborne germs away from you.

I've already given my husband little Purell bottles and individually packaged Sani-Hands wipes (fragrance-free, alcohol-based hand sanitizer wipes).

I'm also looking into various supplements with some peer-reviewed evidence of efficacy (Cold-fX/American ginseng, Echinamide/echinacea, Kan Jang/andrographis, high-allicin garlic)...

I'd appreciate any advice you may have. thanks