The fastest way to neutralize acid reflux is with an over-the-counter antacid containing calcium carbonate, which works within minutes by directly neutralizing stomach acid. If you don’t have antacids on hand, dissolving half a teaspoon of baking soda in a glass of water can produce similar quick relief. Beyond these immediate fixes, several body positioning techniques and habit changes can calm a flare-up in progress and prevent the next one.
Over-the-Counter Options by Speed
Not all reflux medications work on the same timeline, and when you’re in the middle of a burning episode, that distinction matters a lot.
Antacids (brands like Tums, Rolaids, or Maalox) are the fastest-acting option. They neutralize acid that’s already in your stomach and esophagus, providing relief within minutes. The trade-off is that they wear off relatively quickly, typically within one to two hours.
H2 blockers take about an hour to kick in but last significantly longer. They work by reducing the amount of acid your stomach produces rather than neutralizing what’s already there. If your reflux tends to persist for hours, especially at night, these are a better match.
Proton pump inhibitors (PPIs) are the strongest option, but they’re not designed for immediate relief. They take one to four days to reach full effect. PPIs are built for ongoing management, not for putting out a fire right now.
Alginate-based products (like Gaviscon) offer a different approach entirely. They form a physical gel-like barrier that floats on top of your stomach contents and blocks acid from splashing upward. They begin working right away and can be taken with or right after a meal.
The Baking Soda Fix
If you don’t have antacids at home, plain baking soda (sodium bicarbonate) is a legitimate substitute. It’s a base that neutralizes stomach acid on contact. The Mayo Clinic lists a standard dose of half a teaspoon dissolved in a glass of water, which you can repeat every two hours as needed.
There are real limits to this approach, though. Baking soda is extremely high in sodium, so it’s a poor choice if you have high blood pressure, heart disease, kidney disease, or are on a sodium-restricted diet. It can also cause your body to retain water, worsening swelling in the feet or legs. Don’t use it for more than two weeks, and don’t rely on it if your reflux keeps coming back. That’s a sign something else is going on.
Body Positioning That Helps Right Now
Gravity is one of your best tools during a reflux episode. Standing upright or going for a gentle walk lets gravity keep acid in your stomach instead of letting it creep up into your esophagus. If you were lying down when the burning started, simply sitting up can make a noticeable difference within minutes.
If you need to stay in bed, roll onto your left side. The American Gastroenterological Association recommends left-side sleeping because of how the stomach connects to the esophagus. When you lie on your left, that junction sits above the level of stomach acid, making it harder for acid to escape upward. Lying on your right side does the opposite, positioning that junction below the acid pool.
Elevating the head of your bed also helps. Wedge pillows designed for reflux typically sit at a 30- to 45-degree angle and raise your head between 6 and 12 inches. Stacking regular pillows usually doesn’t work well because they bend you at the waist rather than creating a smooth incline, which can actually increase abdominal pressure.
Chewing Gum After Meals
This one sounds too simple to work, but chewing sugar-free gum for 20 to 30 minutes after eating consistently raises pH levels in both the esophagus and throat. The mechanism is straightforward: chewing stimulates saliva production, and saliva is naturally alkaline. Each swallow washes a small amount of that alkaline fluid down through your esophagus, gradually neutralizing acid that’s lingering there. Bicarbonate gum produces even stronger effects than regular gum.
Foods and Drinks That Make It Worse
When you’re dealing with active reflux, what you avoid matters as much as what you take. Several common foods and drinks directly relax the muscular valve between your stomach and esophagus, the ring of muscle that’s supposed to keep acid from traveling upward.
- Coffee (both regular and decaf) relaxes that valve.
- Chocolate contains a compound similar to caffeine that has the same relaxing effect.
- Peppermint, garlic, and onions all loosen the valve and promote acid escape.
- Fatty, fried, or spicy foods relax the valve and also slow stomach emptying, meaning acid sits in your stomach longer with more opportunity to splash upward.
If you’re in the middle of a flare-up, eating anything heavy will likely make it worse. If you’re hungry, stick to bland, low-fat foods. And avoid lying down for at least two to three hours after eating. Bending over right after a meal, even to tie your shoes, can be enough to trigger a surge.
What About Apple Cider Vinegar?
You’ll find countless recommendations online to drink apple cider vinegar for heartburn. The theory is that adding acid to the stomach somehow helps. There is no published research in medical journals supporting this. Zero clinical trials have tested it for heartburn. Since vinegar is itself acidic, swallowing it during an active reflux episode risks irritating an esophagus that’s already inflamed. This is one home remedy worth skipping.
Herbal Options With Limited Evidence
Chamomile tea may have a soothing effect on the digestive tract, and many people report it calms mild reflux. If you have a ragweed allergy, though, you may react to chamomile since the plants are related. Ginger has been used as a folk remedy for heartburn for centuries and is generally well tolerated, though the clinical evidence behind it remains thin. Neither of these is a substitute for an antacid during a serious episode, but for mild discomfort, a warm cup of either is a reasonable thing to try.
When Chest Pain Isn’t Reflux
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, gets worse after eating or lying down, and improves with antacids. It often comes with a sour taste in the mouth or a feeling of food rising in the throat.
A heart attack is more likely to cause pressure, tightness, or squeezing in the chest that may spread to the neck, jaw, or arms. It can also come with shortness of breath, cold sweats, sudden dizziness, or unusual fatigue. If your chest pain came on suddenly, feels different from your usual heartburn, or is accompanied by any of those symptoms, treat it as a medical emergency. The overlap between the two is real enough that emergency rooms routinely test for heart attacks in patients who come in with chest pain, regardless of their reflux history.