If you have diarrhea after eating too much mutton, it may be due to indigestion; or acute gastroenteritis caused by eating. At present, it is necessary to take general treatment, montelukast, domperidone, clarithromycin and other medications according to the cause of the disease to alleviate the symptoms. 1. Indigestion: If eating too much at one time, leading to gastrointestinal indigestion, easy to cause acute diarrhea. It is recommended to increase the appropriate amount of activity to accelerate intestinal peristalsis; oral montelukast can be taken when diarrhea, such as gastrointestinal flatulence, dyspepsia and other symptoms, it is recommended to take oral domperidone. 2. Acute gastroenteritis: If you suffer from acute gastroenteritis, eating too much lamb may lead to gastrointestinal mucosal irritation, thus causing diarrhea. It is recommended to take Montelukast orally to inhibit intestinal toxins and protect the gastrointestinal mucosa. Oral antibiotics, such as clarithromycin and ciprofloxacin, are required for those with combined bacterial infections. During the treatment period, we should eat a reasonable diet, try to be light and nutritious, reduce the spicy stimulation of food, and control the fat and calorie of food. If the diarrhea is severe enough to require medication, it should be administered according to the doctor’s instructions.