Boys eating ice cream stomach pain diarrhea can take montelukast, lactobacillus acidophilus tablets and other drugs, avoid intake of spicy, cool food, drink more water to avoid dehydration. Ice cream is cold food, eat ice cream diarrhea is due to eat cold food, stimulate the gastrointestinal tract, cause gastrointestinal tract peristalsis function abnormal, which leads to diarrhea symptoms, should be light diet, drink more warm water, warm milk, etc., to avoid eating too much cold food as well as spicy, stimulating, greasy food, to reduce the burden on the gastrointestinal tract. Eating cold food diarrhea, do not rule out the cause of acute gastroenteritis, intestinal flora imbalance, gastrointestinal dysfunction, commonly used drugs are levofloxacin, metronidazole, berberine hydrochloride, montelukast, bacillus licheniformis, trimethoprim maleate and other drug therapy. The above drugs are used under the guidance of physicians. If the symptoms of diarrhea are serious, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, to treat the cause of the disease, and to use medication under the guidance of the doctor, to avoid self-medication, which will lead to a misunderstanding of the disease.