Stay hydrated. It turns out that drinking plenty of water will not only counter the overall dehydrating effects of air travel, which can lead to headaches, stomach problems, cramps, fatigue and more, but can actually fortify your preemptive natural immune mechanisms to function considerably better. Of course, this is the case in normal daily life — when exercising, during prolonged sun exposure, etc. Even caffeine and alcohol consumption can dry you out. However, in an airplane, where your nose and throat are on the front lines of the war with exceedingly dry air, these are the first places to suffer. Sipping water or some other fluid regularly throughout the flight may be more effective than drinking a lot of water at one time before or during the flight; this will keep your protective system from long dry spells.

Nasal mists have been found to be very effective in keeping this system working in your nose. Additionally, hot drinks are a good way to keep your protective mucous membranes working — first, to assist in keeping you generally hydrated; second, by triggering the system into gear; and third, by directly providing moisture in the form of steam. Note that this is not a treatment per se. Rather, it just keeps your defenses strong and functioning.

Keep your hands clean. Your hands are the most consistent point of first contact with cold, flu and other germs. It is a direct line from armrest/seatback/handshake to fingers to fork to mouth to full-blown fever a few days later. According to a National Institutes of Health factsheet, the type of virus that causes the common cold and the flu has been found to survive for up to three hours on your skin or on objects such as armrests, TV remote control handsets, tray tables and other similar surfaces. However, the simple act of washing your hands with hot water and soap is a formidable rampart against this transfer of harmful microorganisms. [Read more...]