(HealthDay News) -- Most cases of diarrhea clear up on their own, unless there's a more serious cause such as food or water contamination.

Dehydration often is your biggest concern. Here are suggestions for dealing with diarrhea, from the U.S. National Digestive Diseases Information Clearinghouse:

• Keep yourself well-hydrated by drinking plenty of water, unless you're traveling to another country. In that case, avoid tap water, ice, and foods washed in tap water at all costs. Drink and eat from sources that you know are safe for travelers.
• Avoid foods and drinks that contain caffeine, as well as dairy products.
• Avoid foods that are high in fiber.
• Don't eat foods that are very greasy or sweet.
• As you start to feel better, try eating bland foods such as rice, toast, crackers, bananas or boiled potatoes.

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