Most upset stomachs resolve on their own within a few hours, but you can speed things along with a combination of simple home remedies, smart food choices, and the right over-the-counter options. The key is matching your approach to your symptoms, whether that’s nausea, bloating, cramping, or diarrhea.
Why Your Stomach Is Upset
The most common triggers are everyday ones: eating too much or too fast, high-fat meals, stress, and alcohol. Certain medications, especially pain relievers and antibiotics, can irritate the stomach lining directly. Smoking, poor sleep, and ongoing stress also make symptoms worse or more frequent.
Sometimes the cause goes deeper. Acid reflux (GERD), stomach ulcers, and functional dyspepsia (a chronic pattern of discomfort without an obvious structural cause) can all produce that familiar queasy, bloated, burning feeling. A stomach bug from a virus or contaminated food is another common culprit, and it usually brings nausea, vomiting, or diarrhea along with it.
Fast-Acting Home Remedies
Peppermint is one of the better-studied natural options. It relaxes the smooth muscle in your digestive tract, which can ease cramping, bloating, and gas. Enteric-coated peppermint oil capsules (available over the counter) are the most effective form because the coating keeps the oil from releasing in your stomach, where it could worsen heartburn, and delivers it to your intestines instead. If you don’t have capsules on hand, peppermint tea is a gentler alternative that still provides some relief.
Ginger works well for nausea specifically. A small piece of fresh ginger steeped in hot water for five to ten minutes makes a strong tea. Ginger chews and ginger ale (check that it contains real ginger, not just flavoring) are other options.
Applying a heating pad or warm towel to your abdomen can relax tense muscles and improve blood flow to the area, which helps with cramping. Keep the heat moderate and limit sessions to about 20 minutes at a time.
Acupressure for Nausea
There’s a pressure point on your inner wrist called P6 that’s been used for centuries to reduce nausea. To find it, place three fingers flat across the inside of your opposite wrist, starting just below the crease where your hand meets your arm. Right below your three fingers, press your thumb into the groove between the two large tendons that run down the center of your wrist. Apply firm, steady pressure for two to three minutes, then switch wrists. This is the same point targeted by anti-nausea wristbands sold in pharmacies.
Over-the-Counter Options
Which product to reach for depends on what’s bothering you most.
- Antacids (calcium carbonate, magnesium hydroxide) work fastest for heartburn and acid-related discomfort. They neutralize stomach acid almost immediately, but the relief is relatively short-lived.
- H2 blockers (famotidine) take about an hour to kick in but keep working for four to ten hours. They’re a better choice if your symptoms tend to linger or come back after antacids wear off.
- Bismuth subsalicylate (the active ingredient in Pepto-Bismol) helps with nausea, diarrhea, and general stomach discomfort. One important caution: don’t give it to children or teenagers who have, or are recovering from, a viral illness like the flu or chickenpox, because it carries a risk of a rare but serious condition called Reye’s syndrome.
- Simethicone targets gas and bloating specifically. It breaks up gas bubbles in your digestive tract and tends to work within 30 minutes.
If you’re dealing with diarrhea alongside your stomach upset, a probiotic yeast supplement can help. The typical adult dose is 500 mg once daily for prevention or twice daily for active symptoms, and a course usually lasts one to four weeks for acute episodes. Look for it in the supplement aisle near other probiotics.
What to Eat (and Avoid)
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. These bland, low-fiber foods are genuinely easy on an irritated stomach and can help firm up loose stools. But the BRAT diet isn’t nutritionally complete, so treat it as a starting point for the first 12 to 24 hours rather than a multi-day plan. As soon as you feel able, mix in other gentle foods like plain crackers, boiled potatoes, cooked carrots, and lean chicken or broth.
While your stomach is recovering, avoid the foods most likely to make things worse: anything greasy or fried, dairy (especially if you’re having diarrhea), spicy dishes, caffeine, alcohol, and carbonated drinks. Acidic foods like tomatoes and citrus can also irritate an already sensitive stomach lining.
Small, frequent meals are easier to digest than three large ones. Eating slowly and chewing thoroughly makes a real difference because it reduces the amount of air you swallow (a common source of bloating) and gives your stomach less work to do at once.
Staying Hydrated
If vomiting or diarrhea is part of the picture, dehydration becomes the biggest practical risk. Sip water, clear broth, or an oral rehydration solution throughout the day rather than gulping large amounts at once, which can trigger more nausea. Sports drinks can replace lost electrolytes, though they contain more sugar than ideal. Avoid drinking fluids that are very hot or very cold, as extreme temperatures can irritate your stomach further.
Signs that dehydration is setting in include dark urine, dry mouth, dizziness when standing, and a noticeable drop in how often you need to urinate. If you can’t keep any liquids down for more than several hours, that changes the situation from a home remedy problem to one that needs medical attention.
When Stomach Pain Needs Urgent Care
Most upset stomachs are uncomfortable but harmless. A few patterns, however, signal something more serious. Get to an emergency room if you experience pain that starts near your belly button and moves to the lower right side of your abdomen and worsens over hours (a classic sign of appendicitis), severe upper abdominal pain that gets worse after eating and comes with fever or a rapid pulse (possible pancreatitis), or sudden sharp cramping in the lower abdomen that hits maximum intensity almost immediately (which can indicate kidney stones).
Other reasons to seek immediate care: vomiting that won’t stop and makes it impossible to keep liquids down, severe bloating with constipation and an inability to pass gas (especially if you’ve had abdominal surgery in the past, since this raises the concern of a bowel obstruction), bloody or black stools, or abdominal pain that feels similar to a past episode but is clearly more severe or different in character this time around.