An upset stomach is a nonmedical term describing a range of gastrointestinal symptoms like gas, bloating, indigestion, heartburn, nausea, vomiting, constipation or diarrhea. There are several remedies that can help settle an upset stomach quickly, including:

1. Drink clear liquids: During the first 24 to 36 hours, the best treatment is a diet of clear liquids in frequent, small amounts. Drink enough fluids to keep your urine a pale yellow or clear color. If you vomit, start with sips of water or sucking on ice chips. If these are well tolerated, try other fluids like sports drinks, clear, non-caffeinated sodas such as 7-Up, Sprite or ginger ale, diluted juices such as apple, grape, cherry or cranberry (avoid citrus juices), clear soup broth or bouillon, popsicles, or decaffeinated tea.

2. Ginger: Ginger has anti-inflammatory properties, which can help soothe an upset stomach. It also contains chemicals that can accelerate stomach contractions to move offending foods through the stomach more quickly. Ginger can be consumed in chew or supplement form or added to beverages like tea.

3. Peppermint or chamomile tea: Peppermint and chamomile tea can be used for natural upset stomach relief. They relax the muscles of the digestive tract and reduce cramping and intestinal muscle spasms.

4. Eat something bland: Eating a few bland foods throughout the day might help ease your troubled tummy. Try lightly salted crackers, unbuttered popcorn, bananas, or plain rice to help give your upset stomach time to recover.

5. Avoid certain foods: People with irritable bowel syndrome may want to avoid certain foods that increase flatulence, especially beans, legumes, onions, celery, asparagus, cauliflower, raisins, apricots, prunes, Brussels sprouts, wheat, pretzels, and bagels.

Its important to note that if your symptoms become irregular or last longer than two days, you should consult your doctor.