Most upset stomachs resolve within a few hours with simple at-home steps: sipping fluids, eating bland foods, and resting the digestive tract. The fastest relief comes from matching your remedy to your specific symptom, whether that’s nausea, cramping, bloating, or acid-related burning.
Start With What You Eat and Drink
The single most important thing you can do for an upset stomach is stop eating whatever triggered it and switch to gentle foods. A bland diet means soft, low-fiber, non-spicy foods that require minimal effort from your digestive system. Good options include bananas, applesauce, plain white rice, toast made from refined flour, broth-based soups, crackers, eggs, baked chicken, and potatoes. You can also have low-fat dairy, cooked vegetables, and gelatin.
Avoid anything fried, greasy, or heavily seasoned. Raw vegetables, high-fiber cereals, nuts, seeds, dried fruits, and strong cheeses are all harder to digest and can make things worse. Skip alcohol, coffee, and carbonated drinks. If you smoke, that irritates the stomach lining too.
Eat small amounts more frequently rather than full meals. Chew slowly and thoroughly. Don’t eat within two hours of lying down, since a full stomach combined with a horizontal position pushes acid upward and worsens nausea or heartburn.
Stay Hydrated, Especially After Vomiting or Diarrhea
Vomiting and diarrhea drain your body of water and electrolytes fast. Plain water helps, but it doesn’t replace the sodium and potassium you’ve lost. Premixed oral rehydration solutions (sold at most pharmacies and grocery stores) are designed specifically for this. They contain a balance of sodium and glucose that helps your gut absorb fluid efficiently. Sip slowly rather than gulping, since large volumes at once can trigger more vomiting.
If you don’t have a rehydration solution on hand, diluted fruit juice, weak tea, or broth all work as intermediate options. Avoid sugary sports drinks, which can pull more water into the intestines and worsen diarrhea.
Natural Remedies That Actually Help
Peppermint is one of the better-supported natural options for stomach cramps and bloating. Peppermint oil relaxes the smooth muscle lining the digestive tract, which reduces the spasms that cause cramping. You can drink peppermint tea or use enteric-coated peppermint oil capsules. Skip this one if your main symptom is heartburn, though, because relaxing the muscle at the top of the stomach can let acid escape upward.
Ginger is effective for nausea specifically. Ginger tea, ginger chews, or even flat ginger ale (let the carbonation go flat first) can settle a queasy stomach. Heat also helps: a warm compress or heating pad placed over your abdomen relaxes tense muscles and increases blood flow to the area, easing cramping.
The Pressure Point Trick for Nausea
A technique called P6 acupressure can reduce mild nausea. Place three fingers from your right hand flat across the inside of your left wrist, just below the crease. Then press your thumb into the spot just below those fingers, in the groove between the two large tendons that run down your wrist. Apply firm, steady pressure for two to three minutes. This is the same principle behind anti-nausea wristbands sold for motion sickness and morning sickness.
Over-the-Counter Options by Symptom
Different medications target different problems, so picking the right one matters.
For acid-related burning or heartburn, antacids (the chewable tablets containing calcium carbonate) neutralize stomach acid and work within minutes. The relief is fast but short-lived. If you need longer coverage, an H2 blocker takes about an hour to kick in but keeps working for four to ten hours. Choose antacids for quick, temporary relief and H2 blockers when you want to prevent symptoms from coming back over several hours.
For nausea, diarrhea, or general queasiness, bismuth subsalicylate (the active ingredient in Pepto-Bismol and Kaopectate) reduces inflammation in the gut lining and has a mild antimicrobial effect. It’s effective for the kind of upset stomach that comes with loose stools. However, it contains a compound related to aspirin, so avoid it if you’re allergic to aspirin, take blood thinners, or have any history of stomach ulcers or GI bleeding. Children and teenagers recovering from the flu or chickenpox should not take it due to the risk of Reye syndrome.
For bloating and gas, simethicone-based products break up gas bubbles in the digestive tract. They won’t help with nausea or cramping, but if your main complaint is feeling uncomfortably full and distended, they can provide noticeable relief.
Probiotics Can Shorten Recovery
If your upset stomach involves diarrhea, particularly from a stomach bug, probiotics can speed things up. A large review of clinical trials found that probiotics reduced the average duration of diarrhea by about 30 hours and lowered the likelihood of still having symptoms at three days by roughly a third. Look for products containing well-studied strains like Lactobacillus or Saccharomyces boulardii. Yogurt with live active cultures is a food-based option, though the dose is lower than what you’d get from a supplement.
What’s Probably Causing It
Most upset stomachs have no serious underlying cause. The most common triggers are eating too much or too quickly, fatty or spicy foods, alcohol, caffeine, stress, and medications like anti-inflammatory painkillers. Stomach bugs (viral gastroenteritis) are another frequent culprit, usually accompanied by vomiting, diarrhea, or both.
When indigestion keeps coming back without an obvious trigger, it’s sometimes classified as functional indigestion, meaning the digestive system is sensitive and reactive even though nothing is structurally wrong. In these cases, the same bland-diet and stress-management strategies help, but the pattern tends to recur.
Signs That Need Medical Attention
Most stomach discomfort is harmless, but certain combinations of symptoms point to something more serious. Seek emergency care if you experience any of the following:
- Severe pain that started near the belly button and moved to the lower right side. This pattern, especially if it worsens with movement or coughing and comes with fever or loss of appetite, suggests appendicitis.
- Intense upper abdominal pain that gets worse after eating, paired with nausea, fever, and a rapid pulse. This can indicate acute pancreatitis.
- Vomiting that won’t stop or an inability to keep any liquids down for more than several hours.
- Bloating with constipation and no ability to pass gas, particularly if you’ve had abdominal surgery in the past. This could signal a bowel obstruction.
- Blood in your vomit or stool, or stools that appear black and tarry.
- High fever alongside abdominal pain.
Pain that feels similar to something you’ve experienced before but is noticeably more severe or behaves differently also warrants a visit to the emergency room rather than waiting it out.