Diarrhea is almost always a self-limiting condition, subsiding within a few days. Drink clear fluids and follow a BRAT (bananas, rice, applesauce, toast) diet as tolerated to allow your GI system a break. Avoid any anti-diarrheal agents as those will slow clearing out elements that caused your GI to be upset. Younger and older adults should take extra care to avoid dehydration as they recover.