And speaking of kiddos and others in refugee camps, a true miracle of the last 30 years has been the promotion of oral rehydration therapy (ORT), which really should be basic first aid information.
THE TREATMENT OF DIARRHOEA: A manual for physicians and other senior health workers, World Health Organization, 2005.
http://whqlibdoc.who.int/publications/2 ... 593180.pdf
Check it out, parts of it are a lot more readable than you may think. For example, see page 9 (13 in PDF).
They're talking about unsalted rice water, salted rice water, unsalted vegetable soup, salted soup, weak tea, and other fluids mothers feel acceptable for a child with diarrhea, with the goal being a modest amount of sugar and salt. And the goal being to start early and often to hopefully prevent dehydration in the first place.