What to take for viral gastroenteritis?

Oral rehydration therapy (ORT). : You can get oral rehydration fluid at a pharmacy.

GI sx's: Start w clear liquid like water, slightly flattened soda that is clear, or sports hydration drinks. Sip, sip, sip. Work up to solids w bland foods like bananas, rice, applesauce, toast, gelatin, or chicken. Avoid alcohol, nicotine, caffeine, dairy & high fat foods. Rest.

Gastroenteritis: Gastroenteritis is an infection of the gut (intestines). It is common. The severity can range from a mild tummy upset for a day or two with some mild diarrhoea, to severe diarrhoea and being sick (vomiting) for several days or longer. Many viruses, bacteria and other microbes (germs) can cause gastroenteritis. Rotavirus is the most common virus causing gastroenteritis in children. http://patient.info/health/gastroenteritis-in-children-leaflet