Stomach pain from eating spicy food may be a normal physiological phenomenon, try to minimize eating spicy food. It may also be caused by gastritis, stomach ulcer, stomach cancer and other diseases. Gastritis, gastric ulcer and other diseases can be treated by life management and medication, while gastric cancer can be treated by surgery. 1. Gastritis, gastric ulcer and other diseases: Eating spicy food may lead to increased secretion of gastric acid and aggravate the damage of gastric mucous membrane, which may cause stomach pain. You can take warm milk, soda water and other food to protect gastric mucosa and neutralize gastric acid, and also eat less spicy, stimulating, greasy, barbecue, raw and cold food. You can take drugs to inhibit gastric acid secretion such as omeprazole and rabeprazole; you can also take drugs to protect mucous membrane such as colloidal bismuth pectin and bismuth potassium citrate. 2. Gastric cancer: Eating spicy food can aggravate gastric mucous membrane damage of patients with gastric cancer, and symptoms of stomach pain will appear, which needs to be treated by tumor resection. If the phenomenon of stomach pain after eating spicy food occurs, it is not recommended to take medicine by oneself, and it is recommended to go to the hospital to check the gastroscope and other items and then take medicine under the guidance of doctor for treatment.