You need not always spend time and money on artificial methods to deal with health problems related to a travel. Some natural and healthy tips will help you to make your trip enjoyable.
Walking into the airport or train station before the trip should be done only after protecting your immune system. Take herbal immune supplements or vegetable juice in sufficient quantities before going for the trip. Take zinc into your body through eating pumpkin seeds. Include other supplementary food items in your diet including ginger and goldenseal. Take the fish oils having essential nutrients which will help to develop immunity in your body.