Most upset stomachs resolve on their own within a day or two, and the fastest way to feel better is a combination of small sips of fluid, gentle foods, and rest. What works best depends on whether you’re dealing with nausea, cramping, diarrhea, or a general queasy feeling, but a few reliable strategies cover nearly all of these.
Start With Small Sips, Not Big Glasses
Dehydration is the main risk when your stomach is off, especially if you’re vomiting or having diarrhea. But gulping water can make nausea worse. Take small, frequent sips instead. Water is fine for mild cases, but if you’ve been sick for several hours, you need to replace electrolytes too.
The most effective rehydration uses a roughly equal ratio of sodium to glucose, which activates a transport system in your gut that pulls fluid into your body faster than water alone. Premixed oral rehydration solutions available at pharmacies and grocery stores work well for this, even though their sodium-to-glucose ratio is closer to 1:3 rather than the ideal 1:1. Broth-based soups and fruit juice popsicles are also good options because they provide salt, sugar, and fluid together. Sports drinks will work in a pinch, though they tend to be higher in sugar than you need.
Ginger for Nausea
Ginger is one of the most studied natural remedies for nausea, and it genuinely works for many people. The active compounds, called gingerols, help stabilize abnormal stomach contractions and increase the movement of food through your digestive tract. In studies on motion sickness, ginger partially blocked the erratic stomach rhythms that cause that wave-of-nausea feeling.
The simplest options are ginger tea (steep fresh slices in hot water for 5 to 10 minutes), ginger chews, or flat ginger ale made with real ginger. Powdered ginger capsules are another option if the taste isn’t for you. Most studies use doses between 250 mg and 1 gram of ginger, so you don’t need much.
Peppermint for Cramping and Bloating
If your stomach upset feels more like cramping, pressure, or bloating than nausea, peppermint may help more than ginger. Menthol, the main active ingredient, blocks calcium channels in your gut’s smooth muscle, which reduces spasms. It also slows the transit of food through your intestines, giving your system more time to settle.
Peppermint tea is the easiest approach. If you want something stronger, enteric-coated peppermint oil capsules deliver the oil directly to your intestines rather than your stomach. This matters because peppermint relaxes the muscle at the bottom of your esophagus too, which can cause heartburn. If you already deal with acid reflux, skip peppermint entirely.
What to Eat (and What to Avoid)
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. It’s a reasonable starting point for the first day or two because those foods are bland and easy to digest, but there’s no reason to limit yourself to only those four items. Brothy soups, oatmeal, boiled potatoes, crackers, and unsweetened dry cereals are all equally gentle on your stomach.
The foods to actively avoid matter more than the foods you choose. Anything high in fat, sugar, caffeine, or dairy can trigger more vomiting or diarrhea. Spicy food, fried food, and alcohol are obvious ones to skip. Once your stomach has settled for a full day, you can gradually reintroduce more nutritious options like cooked carrots, sweet potatoes without skin, avocado, skinless chicken, fish, and eggs.
Apply Heat to Your Abdomen
A heating pad or warm water bottle on your stomach can help more than you’d expect. Heat dilates blood vessels in the area, increasing circulation and helping tense abdominal muscles relax. This is especially effective for cramp-style stomach pain. A warm (not hot) pad for 15 to 20 minutes at a time, with a cloth between the pad and your skin, is a simple way to take the edge off while you wait for things to settle.
Try the P6 Pressure Point
Acupressure at a spot called P6 has enough clinical evidence behind it that it’s used in hospitals to prevent post-surgical nausea. A Cochrane review found it works better than placebo in adults, and separate studies in children showed a significant decrease in vomiting compared to standard care alone.
To find the point, hold your arm out with your palm facing up. Place three fingers from your other hand across your wrist, starting at the crease where your hand meets your wrist. The P6 point is just below where your third finger lands, between the two tendons running up the center of your inner forearm. Press firmly with your thumb for two to three minutes. Anti-nausea wristbands sold at pharmacies work on this same principle.
Over-the-Counter Options
Bismuth subsalicylate (the active ingredient in Pepto-Bismol) is one of the most versatile options for general stomach upset. It helps with nausea, indigestion, and diarrhea. The standard dose for adults is two tablets or two tablespoons of liquid every 30 minutes to an hour as needed, up to a maximum of 16 tablets or 16 tablespoons of regular-strength liquid in 24 hours. It can turn your tongue and stool black temporarily, which is harmless.
Antacids are a better choice if your upset stomach is specifically a burning or acidic feeling in your upper stomach or chest. Simethicone-based products help if the main issue is gas and bloating. For diarrhea specifically, loperamide slows things down, though it’s better to let your body clear out whatever’s bothering it for the first few hours before reaching for it.
Skip the Apple Cider Vinegar
Apple cider vinegar is a popular home remedy for stomach problems, but there’s no clinical evidence supporting it for indigestion or nausea. The acidity can erode tooth enamel with regular use and may actually worsen acid reflux. If your stomach is already irritated, adding more acid is unlikely to help.
How Long Recovery Takes
If your upset stomach is from a viral illness (stomach flu), symptoms typically appear one to two days after exposure and resolve in one to two days for most people. Severe cases can linger for up to a week or two. Food poisoning follows a similar pattern, though the onset is usually faster. General indigestion from overeating, stress, or a food that didn’t agree with you often passes in a few hours.
You’re most contagious with a stomach virus until two days after your symptoms stop, so plan to stay home during that window if possible.
Signs That Need Medical Attention
Most stomach upset is self-limiting, but certain symptoms signal something more serious. Get medical help if you notice blood in your stool or vomit, black or tarry stools, fever alongside gut symptoms, persistent vomiting that prevents you from keeping fluids down, or worsening abdominal pain rather than gradually improving pain. Symptoms lasting longer than a few weeks, sudden changes in weight or appetite, or diarrhea that continues beyond a few days also warrant a visit. If you’re relying on antacids more than twice a week, that pattern points to an underlying issue worth investigating.