You can eat millet porridge, boiled apples, and use medication under the guidance of a doctor to treat bad stomach. Bad stomach is mainly due to inflammation in the gastrointestinal system, resulting in faster intestinal peristalsis and rapid excretion of the contents of the intestines. During the period of bad stomach can eat appropriate millet porridge, millet porridge is not only easy to digest and absorb, which also has the role of vitamin B also has to repair the intestinal mucosa, so it can supplement nutrition at the same time, help improve the condition. Boiled apples have an astringent and antidiarrheal effect. When there is bad stomach, eating boiled apples can reduce the water of food residues in the large intestine, so it can achieve the purpose of antidiarrheal. Most of the bad diarrhea is caused by bacterial infection and should be treated with medication, which can be improved by using norfloxacin capsules.