For quick relief from stomach gas, you can take over-the-counter generic medicines like Simethicone, which helps break down gas bubbles so they are easier to pass. If your gas is accompanied by mild acidity or heartburn, an antacid (such as magnesium hydroxide) can help. For gas triggered by specific foods, taking enzymes like alpha-galactosidase before meals is very effective. Drinking warm water or walking around can also aid digestion. If your symptoms are persistent, severe, or accompanied by intense pain, please consult a doctor for a proper checkup. Otherwise, these simple options should help you feel comfortable soon.