What do you do for diarrhea and does it dehydrate you?

Yes it can if not tr: Start with clear fluids containing electrolytes and increase the diet to bland diet , brat diet , which is banana, rise, apple and toast, soda, crackers, plain boiled potatoes, clear soups, avoiding fatty, spicy and diary products till back to normal this is diet for acute diarrhea due mostly to viral and sometimes bacterial infectons causing diarrhea the main purpose in acute stage is to prevent dehydrat.