Gastroenteritis (the common stomach flu) is a condition where the gastrointestinal tract is inflamed usually as a result of contracting a viral infection. Common symptoms of the stomach flu include upset stomach, nausea, diarrhea, cramping, and vomiting. Although there is no real cure for gastroenteritis, there are several things you can do to ease your symptoms if you believe you have contracted gastroenteritis. Keep in mind that the symptoms associated with gastroenteritis can also be symptoms of more serious gastrointestinal disorders. Follow the suggestions below to learn how to ease the symptoms associated with gastroenteritis.