Patients with diarrhea have weak digestive capacity, and potatoes contain a lot of dietary fiber, which is good for improving the gastrointestinal mucosa and intestinal function, as well as a variety of trace elements, which can improve the water-electrolyte balance imbalance caused by diarrhea. Potatoes contain a lot of carbohydrates and starch, which tend to produce gas under the action of digestive juices, so avoid eating too many potatoes during diarrhea. Patients with diarrhea lose a lot of water and nutrients, so they can eat more liquid food to replenish nutrients and not increase the workload of the gastrointestinal tract, and they need to improve the situation by taking drugs, such as norfloxacin capsules and levofloxacin capsules.