The fastest way to get rid of heartburn is to take an antacid, which neutralizes stomach acid within minutes. If you don’t have one on hand, a half teaspoon of baking soda dissolved in a glass of water works as a stopgap. Beyond that, a few simple physical tricks can drain acid away from your esophagus and calm the burn surprisingly fast.
Antacids Work Within Minutes
Over-the-counter antacids containing calcium carbonate (like Tums) or magnesium hydroxide (like Milk of Magnesia) are the quickest pharmacological fix. The metal compounds in these tablets directly bind to acid in your stomach, raising the pH within minutes of swallowing. Chewable tablets tend to work slightly faster than liquid forms because chewing breaks them down immediately and you start swallowing the active ingredient sooner.
Another OTC option worth knowing about is alginate-based products (sold under brand names like Gaviscon). These work differently from standard antacids. When alginates mix with stomach acid, they form a gel-like raft that floats on top of the acid pool in your stomach, physically blocking it from splashing up into your esophagus. They begin working right away and can be taken with a meal or immediately after. If you get heartburn regularly after eating, alginates paired with an antacid give you both chemical neutralization and a physical barrier.
The Baking Soda Option
If you don’t have antacids at home, plain baking soda (sodium bicarbonate) is a legitimate alternative. It’s the same acid-neutralizing compound found in many commercial antacids. According to Mayo Clinic dosing guidance, adults can dissolve half a teaspoon in a full glass of water and drink it. The relief is fast, usually within five to ten minutes.
There are limits, though. Don’t exceed five teaspoons in a single day, and don’t use it as a regular solution. Baking soda is extremely high in sodium, and repeated use can cause side effects like bloating, gas, and electrolyte imbalances. It’s a pantry emergency fix, not a daily habit.
Change Your Position
What you do with your body matters almost as much as what you swallow. If heartburn hits while you’re lying down, roll onto your left side. This works because of simple anatomy: when you lie on your left, your esophagus and the valve at its base sit higher than your stomach. Acid drains downward, away from the valve, instead of pooling against it. Lying on your right side does the opposite, positioning the stomach above the esophageal opening and making reflux worse.
If you’re upright, stay that way. Sitting or standing lets gravity do the work. Avoid bending over or lying flat for at least two to three hours after eating. If you need to sleep, prop the head of your bed up by about six inches using blocks under the frame or a wedge pillow. Regular pillows don’t work well for this because they bend your neck without actually elevating your torso.
Chew Gum for a Quick Boost
This one sounds odd, but chewing sugar-free gum for 20 to 30 minutes after a meal can reduce heartburn. Chewing stimulates saliva production, and saliva naturally contains bicarbonate, the same acid-neutralizing compound in baking soda. The steady flow of alkaline saliva washes acid back down from the esophagus into the stomach. Bicarbonate gum, specifically marketed for this purpose, increases the effect. Avoid mint-flavored gum, though, since mint can relax the valve between your esophagus and stomach and make the problem worse.
Loosen Tight Clothing
If you’re wearing a belt, high-waisted jeans, or anything snug around your midsection, loosen it. Pressure on the abdomen pushes stomach contents upward. This is one of those fixes that sounds too simple to matter, but it can make a noticeable difference, especially after a large meal when your stomach is already full and under pressure.
What Triggered It (and How to Avoid a Repeat)
Heartburn happens when stomach acid escapes past the valve at the top of your stomach and irritates the lining of your esophagus. Certain foods relax that valve directly, making reflux more likely. The most common culprits are chocolate, coffee, alcohol, peppermint, and high-fat foods. These don’t just sit heavily in the stomach. They actively loosen the muscular ring that’s supposed to keep acid contained.
Eating large meals, eating late at night, and lying down soon after eating are the behavioral triggers that come up most often. Carbonated drinks can also push acid upward by increasing pressure inside the stomach. If you’re dealing with heartburn right now, skip the coffee or cocktail you were considering. Even water is a better choice since it helps dilute acid and wash it back down.
When Heartburn Isn’t Just Heartburn
Most heartburn is exactly what it feels like: annoying but harmless. Occasionally, though, the burning sensation in your chest has nothing to do with your stomach. Heart attacks can mimic heartburn, especially in women. The warning signs that suggest something more serious include pressure or tightness that spreads to your jaw, neck, or arms; shortness of breath; cold sweats; sudden dizziness; or unusual fatigue alongside the chest discomfort. If you experience any combination of these, treat it as a cardiac emergency.
On the less urgent end, heartburn that keeps coming back more than twice a week for several weeks likely qualifies as gastroesophageal reflux disease (GERD). Lifestyle changes and OTC remedies are a reasonable first step, but if you don’t feel relief within a few weeks of consistent effort, it’s time for a professional evaluation. Chronic acid exposure can damage the esophageal lining over time, and stronger prescription options exist for people who need them.