Sick while traveling
Diarrhea is the most common illness to strike travelers. Travelersí diarrhea is most common in developing countries where food and water are not as safe.
Travelers' diarrhea most often begins quickly with watery diarrhea, vomiting, cramping, and a low fever. Many doctors recommend trying to eat as normally as possible. If you are vomiting, try to drink water or other clear fluids. Watch for signs of dehydration, such as a dry mouth and dark-colored urine. If possible, drink rehydration drinks to replace lost fluids and electrolytes. Most cases of travelers' diarrhea get better in one to three days without treatment. But see a doctor if diarrhea lasts longer than three days. It is also a good idea to see a doctor if you have a high fever, blood or pus in your diarrhea, or signs of dehydration.
If you become seriously ill while traveling, your country's embassy or consulate can help you find medical care. If you become ill with a fever or flu-like illness while traveling in malaria-risk areas, get medical help right away.