Hello,
Thanks for posting your query.
Severe indigestion and feeling of gas is a chronic problem and prevention is the best treatment.The main factors responsible for this are-
1.Overeating.     
2. Eating hurriedly without chewing properly.
3.Food allergies like beans, onions, etc.
4.Lack of exercise.
5. Improperly cooked food.
Try to avoid all these causative factors.
Avoid overindulging in alcohol, drinking carbonated beverages or eating while stressed, since all of these can just worsen the problems
Stop smoking and lose weight if you need to.
Take the following steps to help manage your symptoms:
1. Increase the amount of fluid you drink, especially water. Avoid carbonated drinks and alcoholic beverages.
2. Avoid foods that cause gas, such as beans, broccoli, cabbage, and XXXXXXX The amount of gas that different foods cause varies from person to person.
3. Avoid swallowing air. Swallowing air may increase your symptoms.
4. Eat slowly. Avoid gulping food or beverages. When you rush through meals or eat on the run, you are more likely to swallow air.
5. Chew your food thoroughly before you swallow.
6. Avoid drinking through a straw.
7. Avoid chewing gum or eating hard candy.
8. Do not smoke or use other tobacco products.
9. If you wear dentures, check with a dentist to make sure they fit properly.
10. Keep calm. Tension and anxiety can cause you to swallow air.

Some foods to be avoided include certain fermentable short-chained carbohydrates that are degradable by intestinal bacteria yielding large amount of gases, like hydrogen or carbon dioxide, thus causing belching and bloating. Such food include

1. White bread, pasta, pastries, cookies, onions, and asparagus, leeks, garlic, chicory roots and chicory based coffee substitutes.
2. Legumes (soy, beans, chickpeas, lentils), cabbage and brussel sprouts.
3. Honey, dried fruits like prunes, figs, dates, or raisins, apples, pears, sweet cherries, peaches, agave syrup, watermelon, papaya.

The treatment in severe cases, where belching is lasting more than 2 days would be with prescription medications (Haloperidol, Reglan, chlor ) which can be provided by your primary care provider.

In the mean time, Use of OTC medications mentioned below can be used to have some relief.

1. Activated charcoal (Charcocaps) , will absorb the excess gas produced.
2. Antacids, such as Di-Gel, Maalox Anti-Gas, and Mylanta Gas, allow gas to be belched away more easily.
3. Food enzymes, such as Beano, which help break down the sugars found in vegetables and grains, can be added to foods that cause you to have gas.

I hope the suggestions given are helpful.

Please feel free to forward any doubts or questions, if you have.

Regards.

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