Diarrhea caused by overeating ice cream may be treated with antidiarrheal medications (e.g., montelukast), probiotics (e.g., Saccharomyces boulardii), rehydration fluids, antibiotics such as norfloxacin, and dietary modifications. Diarrhea caused by eating too much ice cream can be treated with antidiarrheal medications, such as montelukast to adsorb water from the intestines and astringently stop the diarrhea. Combine with probiotics, such as Saccharomyces boulardii and Bifidobacterium bifidum quadruple vivax tablets, to regulate the intestinal environment. Oral rehydration salts can be given to replenish fluids if diarrhea is frequent. If bacterial infection, antibiotics, such as norfloxacin, amoxicillin and other anti-infective treatment can be given. During diarrhea, eat a light diet, and eat easy-to-digest porridge to relieve the burden on the stomach and intestines. Excessive eating of ice cream causes diarrhea, it is recommended to consult a doctor in time, and follow the doctor’s instructions for medication.