When I'm going out of the country I start chewing Pepto Bismal about a week before leaving and all during the trip. Not because I think that other places are less 'clean' than here but because I just want to make sure that I don't miss out on anything because I'm sick.
I also get a prescription for an antibiotic and take extra imodium. Yes, ALWAYS have those extra undies in your carry-on.
I used to have a fear of flying (after many, many years of no fear) so I started taking Xanax. I could be on a 14-hour flight and sleep through the whole thing. However, DAMN BRIAN wasn't all that pleased that he was traveling a lump of coma. When food was delivered he'd nudge me to wake me up. I don't think those 'nudges' were all that gentle. (It was okay because the Xanax prevented me from feeling the nudges.) And if I slumped forward in a drooling mass he'd push me back in my seat. I don't recall that being gentle either. Anyway, for whatever reason, I am again not fearing plane travel. But if you'd like to snooze from here to there, Xanax is excellent.
kathy