Tummy ache refers to abdominal pain, children eat bad stomach abdominal pain is mostly associated with indigestion, bacterial enteritis, viral enteritis and other factors, can be treated through general treatment or take bifidobacteria, pediatric cefaclor dry suspension, ribavirin and other drugs as prescribed by the doctor. 1. Indigestion: children’s gastrointestinal function is not yet fully developed, if overeating, will lead to indigestion, food accumulation in the stomach, causing abdominal pain symptoms. It can be relieved by improving the diet, localized hot compresses, etc. It can also be supplemented with probiotics, such as Bifidobacterium bifidum, Bacillus subtilis, etc., as prescribed by the doctor; 2. Bacterial enteritis: due to bacterial infection caused by gastrointestinal mucosal damage, causing gastrointestinal spasms, thus triggering abdominal pain, can be prescribed antibiotic treatment, such as pediatric cefaclor dry suspension, while with montelukast to protect the intestinal mucosa; 3. viral enteritis: intestinal inflammation can cause intestinal spasm, hyperfunction, resulting in abdominal pain, can be prescribed to take ribavirin, oseltamivir phosphate and other antiviral drugs to relieve discomfort. In addition, children eat bad stomach abdominal pain may also be caused by other diseases, so it is recommended that such patients seek medical attention in a timely manner to clarify the cause of the disease, under the guidance of the doctor’s instructions to comply with the prescribed medication.