Several things can calm acid reflux quickly, from over-the-counter antacids that work within minutes to simple habits like chewing gum or staying upright after meals. The best approach depends on whether you need immediate relief during a flare-up or a longer-term strategy to keep symptoms from returning.
Fastest Relief During a Flare-Up
When acid reflux hits and you want it gone now, antacids containing calcium carbonate are your quickest option. They work by directly neutralizing stomach acid, and most people feel relief within minutes. The trade-off is that the effect wears off relatively fast compared to stronger options.
A step up from antacids are H2 blockers like famotidine. These take about an hour to kick in but keep working for 4 to 10 hours. If you know a trigger is coming (a heavy meal, for instance), taking one beforehand can prevent the burn before it starts.
Baking soda (sodium bicarbonate) is a home remedy that genuinely works as a short-term fix. A half teaspoon dissolved in a glass of cold water neutralizes acid on contact. But it comes with real limits: don’t exceed five teaspoons in a day, don’t use it for more than two weeks straight, and avoid it if you’re on a sodium-restricted diet or have high blood pressure, kidney disease, or heart problems. It can also interfere with other medications, so space it at least one to two hours away from anything else you take by mouth.
Simple Habits That Reduce Symptoms
Chewing gum after a meal is one of the easiest, most underrated ways to calm reflux. Chewing stimulates saliva production, and saliva is naturally alkaline. That extra saliva washes acid back down out of the esophagus. A study in Alimentary Pharmacology & Therapeutics found that chewing gum for one hour after eating reduced the time acid spent in contact with the esophagus by 27% in people with reflux. The protective effect lasted up to three hours. Sugar-free gum works fine, though mint-flavored varieties bother some people.
Staying upright matters more than most people realize. Gravity is your friend when it comes to keeping stomach contents where they belong. After eating, try to stay sitting or standing for at least three hours. A study comparing people with GERD found that eating dinner less than three hours before bed significantly increased reflux risk compared to waiting four or more hours. Some researchers recommend a five-hour gap between your last meal and bedtime for the best results, especially if nighttime symptoms are your main problem.
Eating smaller portions at dinner and making lunch your biggest meal of the day is another practical shift. A large meal stretches the stomach and puts more pressure on the valve between your stomach and esophagus, making it easier for acid to escape upward.
Best Sleeping Position for Reflux
If reflux wakes you up at night, two changes to how you sleep can make a significant difference. First, sleep on your left side. Research from Harvard Health found that acid clears from the esophagus much faster when people lie on their left side compared to their back or right side. The anatomy of the stomach makes this work: when you’re on your left, the junction where the esophagus meets the stomach sits above the level of stomach acid rather than below it.
Second, elevate your upper body with a wedge pillow. Stacking regular pillows doesn’t work as well because they tend to bend you at the waist rather than creating a gradual incline. A wedge pillow lifts your entire torso, so gravity helps keep acid in your stomach throughout the night. Combining left-side sleeping with elevation is more effective than either change alone.
Foods That Help (and Why)
Certain foods have a higher pH, meaning they’re more alkaline and less likely to trigger reflux. According to Johns Hopkins Medicine, good options include bananas, melons, cauliflower, fennel, and nuts. These foods can help offset the acidity in your stomach rather than adding to it.
Ginger is worth singling out. It’s alkaline, anti-inflammatory, and speeds up the rate at which your stomach empties, so food doesn’t sit around producing acid for as long. Sipping ginger tea when you feel heartburn starting can ease irritation in the digestive tract. One caution: ginger may also relax the valve at the bottom of your esophagus, which could theoretically worsen reflux in some people. Start with small amounts to see how you respond.
A small amount of lemon juice mixed with warm water and honey, despite lemon being acidic on its own, has an alkalizing effect once metabolized and can help neutralize stomach acid for some people.
When You Need Stronger Medication
Proton pump inhibitors (PPIs) like omeprazole are the most powerful option for persistent reflux. Unlike antacids, they don’t just neutralize acid. They reduce how much acid your stomach produces in the first place. The trade-off is speed: PPIs take one to four days to reach full effect, so they’re not useful for a sudden flare. They’re designed for ongoing use when reflux is frequent.
The American Gastroenterological Association recommends that people who need long-term PPI therapy use the lowest effective dose based on symptom control. These medications work well, but they aren’t meant to be taken at high doses indefinitely without periodic reassessment. If over-the-counter antacids or H2 blockers handle your symptoms, you likely don’t need a PPI.
Weight Loss and Long-Term Improvement
Carrying extra weight, especially around the midsection, puts constant pressure on the stomach and forces acid upward. Losing weight is one of the most effective long-term strategies for reducing reflux, and you don’t need to hit a dramatic number on the scale. Research shows that women who lose 5 to 10% of their body weight see a significant reduction in overall GERD symptoms. For men, the threshold is slightly higher, around 10% or more. For someone weighing 200 pounds, that means a loss of 10 to 20 pounds can meaningfully change how often reflux occurs.
This isn’t just about symptom management. Excess abdominal fat physically compresses the stomach and weakens the pressure gradient that keeps the esophageal valve shut. Reducing that fat addresses one of the root causes rather than masking the symptom.
Putting It All Together
For immediate relief, reach for an antacid or chew gum after eating. For overnight symptoms, sleep on your left side with your upper body elevated and leave at least three to four hours between dinner and bedtime. Favor alkaline foods like bananas, melons, and ginger over acidic or fatty options. If reflux happens more than twice a week, an H2 blocker or PPI may be more appropriate than antacids alone. And if you’re carrying extra weight, even modest loss can reduce how often symptoms show up in the first place.