Thanks for contacting healthcare magic. First you have to do stool examination test that helpful for diagnosis. Most commonly watery diarrhea is most because of interstine or stoach flue. Ulcerative colitis or intestinal infection may rule out. In food poisoning therse is watery diarrhea may present. Mslabsoption syndrom may rule out. Dydrate your body by taking more water. Take fress fruit juices . Avoid alcohol drinking. Avoid oily and fatty foods in diet. Avoid spicy foods. Don t take stress more. After taking this much care still symptoms are present than start antibiotics under your physician suggetion if needead. Take care. Thanks.