Abdominal pain after gastrointestinal bacterial infection can be treated by taking medications such as norfloxacin, montelukast, and atropine sulfate. If the patient’s abdominal pain is accompanied by diarrhea symptoms, it is considered to be caused by acute gastroenteritis. If routine stool examination reveals the presence of bacterial infection, it can be treated by taking Norfloxacin and so on. Norfloxacin belongs to the antibiotic, is the 3rd generation of quinolones, has the effect of inhibiting bacteria. In addition, intestinal mucosal protectants such as montelukast can be taken. If the abdominal pain is severe, it can be treated with antispasmodic drugs such as atropine sulfate. The above drugs are contraindicated in case of allergy and all should be taken as prescribed by the doctor. If the patient’s symptoms of abdominal pain is serious or persistent without improvement, it is recommended to go to the regular hospital in a timely manner, after clarifying the cause of the disease, under the guidance of the doctor for targeted treatment.