Tummy pain and diarrhea belong to acute gastroenteritis, which can also be caused by unhygienic diet, accidental consumption of unclean food, or eating spoiled food, accidental exposure to cold, etc., resulting in symptoms of tummy pain and diarrhea. You can take medications for treatment, commonly used are Huo Xiang Zheng Qi Shui, Enteritis Ning, etc. During taking medication, you should also pay attention to drink more water to prevent dehydration caused by diarrhea. During the treatment period, you can eat porridge and other foods that are easy to digest, but don’t eat too much at a time to avoid increasing the gastrointestinal burden and aggravating the disease. Bacterial dysentery can also cause stomach pain, diarrhea and other symptoms, this situation is a bacterial infection, you need to take antibiotics for treatment, commonly used norfloxacin, ciprofloxacin, etc.