Diarrhoea, here we go again (sung to Abbas Mama mia) With diarrhoea, dry foods are important to help keep down food. I have vegemite toast, water, electrolyte drinks and I afford myself the luxury of doing nothing but sleeping and maybe reading. Things to promote the slowing of the digestion. Avoid creamy foods, milk, sugars, overly hot or cold foods, sauces, high processed foods. And have an electrolyte drink on hand. - Make sure its one you are ok with (id avoid ones with maltodextrin (corn syrup and high contents of processed sugars) - chemists generally have decent ones. The plainer the better so your stomach can settle.