There are many reasons for having an upset stomach when eating rice, and it should be treated according to the cause, with common methods such as general treatment and medication. In most cases, an upset stomach from eating rice is caused by weak stomach function, followed by superficial gastritis, esophagitis and other diseases that can also cause this symptom. 1. Weak stomach function: If it is caused by weak stomach function, it is recommended to chew slowly when eating, need to eat light, easy to digest food, avoid spicy and stimulating, moderate exercise. 2. Superficial gastritis, esophagitis: when the stomach function is insufficient, you can usually take Cinitapride, Mosapride, Trimethoprim and other drugs to promote gastrointestinal peristalsis and improve digestive function. If it is caused by superficial gastritis, proton pump inhibitors such as omeprazole can be used to inhibit the secretion of gastric acid and relieve the adverse symptoms. After esophagitis, it is recommended to take prokinetic drugs such as domperidone to reduce acid reflux. Pay attention to the protection of gastric mucosa in life, and try to drink less coffee, strong tea and other stimulating beverages. It is important to note that esophagitis, do not immediately bed rest after meals, not to mention strenuous exercise, so as to avoid the phenomenon of reflux, causing discomfort. If discomfort occurs, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to clarify the cause of the disease and targeted treatment, do not take medication on their own, so as not to delay the condition.