Breastfeeding eating bad stomach pain is considered to be caused by acute gastroenteritis, you can take general measures to regulate, medication and other treatment. 1. General measures: patients with acute gastroenteritis should adjust their diet in time, eat less spicy and stimulating food, such as chili peppers, onions, garlic and so on, to avoid stimulating the gastrointestinal tract. Patients also need to drink appropriate water to promote the body’s metabolism. In addition, patients also need to adjust their eating habits, eat small meals and avoid overeating to prevent increased discomfort. 2. Medication: patients with acute gastroenteritis during breastfeeding can take oral montelukast powder as prescribed by the doctor, which can relieve abdominal pain and diarrhea, and can also take oral microbial therapy such as Saccharomyces boulardii powder and bifidobacterium triple live bacteria powder. In addition, patients can also take oral amoxicillin capsules, benzoxiline sodium tablets and other penicillin antibiotics as prescribed by the doctor. When acute gastroenteritis occurs in breastfeeding patients, they should consult a doctor in time and take medication as prescribed by the doctor, not taking medication without authorization to avoid affecting the baby.