The fastest way to relieve heartburn is to take a liquid antacid or chewable calcium carbonate tablet, which neutralizes stomach acid within minutes. If you don’t have antacids on hand, half a teaspoon of baking soda dissolved in a glass of cold water works as a quick substitute. Beyond swallowing something, there are several physical techniques and habits that can ease the burn right now.
Antacids Work Fastest
Chewable antacids (the calcium carbonate tablets you’ll find in any drugstore) are the quickest over-the-counter option. They neutralize acid on contact, so relief typically starts within a few minutes of chewing and swallowing. The tradeoff is that the effect doesn’t last long, usually fading within an hour or two.
If you want longer-lasting relief, an H2 blocker like famotidine takes about an hour to kick in but suppresses acid production for four to ten hours. Proton pump inhibitors like omeprazole are the strongest option, but they need one to four days to reach full effect, so they’re not useful for a flare happening right now. For immediate relief, antacids are your best bet.
Alginate-based products (sold as liquid heartburn remedies, often combined with antacids) offer a different approach. When the alginate mixes with stomach acid, it forms a gel-like raft that floats on top of your stomach contents, physically blocking acid from splashing up into your esophagus. These start working right away and can be taken with a meal or immediately after.
The Baking Soda Option
If you’re at home without any medication, baking soda is a legitimate antacid. It’s sodium bicarbonate, which neutralizes hydrochloric acid on contact. According to the Mayo Clinic, the standard dose is half a teaspoon dissolved in a glass of cold water, taken every two hours as needed. Don’t exceed five teaspoons in a single day. The relief is fast, often within five to fifteen minutes, but the taste is unpleasant and the sodium content is high, so this is a short-term fix rather than a regular habit.
Stop Eating and Stay Upright
When heartburn hits, stop eating immediately. Anything else you put in your stomach will trigger more acid production and increase the volume of contents pressing against the valve between your stomach and esophagus. Fatty and fried foods are especially problematic because they linger in the stomach longer, keeping that pressure elevated. Spicy foods, citrus, tomato-based sauces, and vinegar can all intensify a flare that’s already underway.
Gravity is your ally. Standing or sitting upright lets acid drain back down into your stomach rather than pooling in your esophagus. If you need to lie down, turn onto your left side. In this position, your esophagus and the muscular ring at its base sit higher than your stomach, so acid drains away from the opening more quickly. If heartburn is waking you at night, elevating the head of your bed by six to eight inches (using blocks under the bed frame, not just extra pillows) keeps acid where it belongs while you sleep.
Chew Gum for 20 Minutes
This one sounds too simple to work, but chewing gum after a meal consistently raises the pH in your esophagus, meaning it becomes less acidic. The mechanism is straightforward: chewing stimulates saliva production, and saliva naturally contains bicarbonate, a base that neutralizes acid. You also swallow more frequently while chewing, which pushes any acid that’s crept up back down into your stomach. Sugar-free gum works fine. Aim for at least 20 minutes of chewing to get the full benefit. Bicarbonate-enriched gum produces an even stronger effect, though regular gum still helps.
Try Ginger in Small Amounts
Ginger speeds up gastric emptying, meaning food moves out of your stomach and into your intestines faster. This reduces the window during which acid can splash upward. The active compounds in ginger also help reduce nausea, which often accompanies bad heartburn. A small cup of ginger tea or a few slices of fresh ginger steeped in hot water is a reasonable approach. Avoid ginger ale, which is usually more sugar and carbonation than actual ginger, and carbonation can make reflux worse.
Loosen Your Clothing
Tight waistbands, belts, and shapewear compress your abdomen, pushing stomach contents upward. If you’re in the middle of a heartburn episode, loosening or removing anything snug around your midsection can provide noticeable relief within minutes. This is especially relevant if your heartburn started after a large meal, when your stomach is already distended.
What to Do If It Keeps Coming Back
Occasional heartburn after a heavy or spicy meal is common and usually nothing to worry about. But if you’re reaching for antacids more than twice a week, that pattern suggests gastroesophageal reflux disease (GERD), which benefits from a more structured treatment plan rather than reactive fixes. Chronic acid exposure can damage the lining of the esophagus over time, so frequent heartburn is worth addressing rather than just managing episode by episode.
When Heartburn Might Not Be Heartburn
Heartburn and heart attacks can feel remarkably similar. Even experienced doctors sometimes can’t tell them apart without testing. Typical heartburn produces a burning sensation in the chest or upper abdomen, usually occurs after eating or while lying down, and improves with antacids. It may come with a sour taste in your mouth or a small amount of stomach contents rising into your throat.
A heart attack classically involves sudden, crushing chest pain and difficulty breathing, often triggered by exertion. But not all heart attacks follow that script. If you have persistent chest pain and you’re not sure it’s heartburn, especially if it came on during physical activity, spreads to your arm, jaw, or back, or is accompanied by shortness of breath, call 911. Both heartburn and early heart attack symptoms can come and go, so the fact that the pain faded briefly doesn’t mean it’s safe to ignore.