Guidance: Hello, are you eating it raw on an empty stomach? Because onions are spicy food, if you have a gastrointestinal problem if you eat them raw, you will feel a burning sensation, so it is recommended not to eat raw garlic, onions, etc. Spicy food can be cooked before eating. If you want to eat, you can eat less when you eat. If you have a stomachache, you can drink more hot water and eat easy-to-digest foods to relieve the pain.