Watermelon is a cold food, and eating too much or eating spoiled watermelon can trigger acute gastroenteritis and lead to diarrhea. Eating watermelon diarrhea can be relieved or treated in the following ways: First, avoid eating watermelon again, especially before the disease is healed. Second, do not eat spicy, cold, irritating food, do not eat undercooked food, such as fish, shrimp, crab and other seafood, do not eat out-of-season fruits or overnight meals. Third, follow medical advice oral antibiotics, such as norfloxacin capsules, pay attention to the dose should not be too large, too large a dose is likely to lead to constipation, dry stools, cephalosporin anti-inflammatory treatment of minors under 18 years of age oral. Fourth, you can also take oral medication to regulate intestinal flora, such as bifidobacterium or bacillus and other drugs. If the condition is serious, promptly consult a regular hospital, perform routine stool, colonoscopy and other tests to confirm the diagnosis of the infecting bacteria, and then give sensitive oral antibiotic treatment.