Occasionally a food allergy or drinking too much fruit juice may cause diarrhea. If you have just one or two loose bowel movements, the cause was probably something unusual you ate. Expected Course Diarrhea usually lasts from several days to a week, regardless of the type of treatment. The main goal of therapy is to prevent dehydration by making sure you drink enough fluids to replace the fluids lost in the diarrhea. Don't expect a quick return to solid bowel movements.
Examples are cereals, breads, crackers, rice, mashed potatoes and noodles.
Drink more water or diluted KOOL-Aid. Avoid fruit juices because they make diarrhea worse. Avoid beans or any other foods that cause loose bowel movements. You can go back to your normal diet 1 day after the diarrhea is gone, which is usually in 3 or 4 days. There is no effective, safe drug for diarrhea.