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Join Date: Sep 2002
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I've found Zicam and Airborne are basically useless. Sambucol liquid (not the gels) is about the only thing out there which is truly anti-viral (with studies to back it up), so my regime before and during travel is 2000MG minimum of Vitamin C and a couple daily doses of Sambucol.
Having said this, Sambucol is not effective against bacterial infections (i.e. strep throat, etc), so your best defense here is keeping your hands clean, and never touching your eyes, mouth or face with unwashed hands which are not treated with alcohol gel.