Elderly people with diarrhea can be treated with general treatment, medication and etiology. 1. General treatment: during the period of diarrhea, we should maintain a light diet, avoid cold, spicy and stimulating foods, greasy food, so as not to cause diarrhea aggravation; at the same time, we should drink more water to avoid dehydration symptoms; and pay attention to rest, maintain sufficient sleep. 2. Medication: When diarrhea is severe in the elderly, antidiarrheal drugs such as montelukast can be given as appropriate; if there are bacterial infections, antimicrobial drugs such as levofloxacin and norfloxacin can be used, but the appropriate drugs should be chosen according to the condition under the guidance of the doctor, to avoid abusing the drugs privately. 3. Etiological treatment: Diarrhea in the elderly should also be treated for the cause, such as eliminating lactose in food for diarrhea caused by lactose intolerance, and avoiding contact with allergens for diarrhea caused by allergy. If the above symptoms occur, you should actively seek medical treatment under the guidance of a professional physician, so as to avoid the progression of the disease and the emergence of complications, which may jeopardize your health.