For immediate relief from stomach gas, you can take over-the-counter medications like Simethicone (e.g., Gas-X), which helps break up gas bubbles in your digestive tract. If your gas is related to eating specific foods like beans or vegetables, taking Alpha-galactosidase (Beano) before meals can prevent it. If you also experience acidity or heartburn, an antacid or Famotidine may help. Please use these only for temporary relief. I recommend eating slowly and avoiding carbonated drinks. If your symptoms persist, are severe, or are accompanied by weight loss, fever, or changes in bowel habits, please consult a doctor for a proper evaluation.