First aid kits for travel need to be more comprehensive because a drug store may or may not be accessible. In addition to personal medical items, the kit should contain items to help alleviate the common symptoms of viral respiratory infections such as these: Fever, Nasal congestion, Cough, Sore throat. Also contain items to treat these ailments: Cuts, Mild pain, Gastrointestinal problems, Skin problems, Allergies.
Yup, thats why I always take a packet of aspirin and a carton of cigarettes, I may die from cancer but the nicotine keeps away all those other things except headaches.