Medically reviewed by Dr. Samuel Davidoff, MD – Board-Certified Gastroenterologist & Hepatologist | 15+ Years Experience | Last Updated: March 2026

Heartburn typically lasts anywhere from a few minutes to a few hours. The duration depends on what triggered it, how much you ate, the types of foods consumed, and whether you lie down after eating. Once your stomach finishes digesting the meal, the acid reflux that causes heartburn usually stops, and the burning sensation goes away.

For most people, occasional heartburn resolves on its own or with over the counter antacids. However, if your heartburn lasts for days, happens multiple times per week, or keeps coming back, it may be a sign of gastroesophageal reflux disease (GERD), a chronic condition that requires medical evaluation. Understanding what affects heartburn duration can help you find relief faster and know when to seek care.

What Affects How Long Heartburn Lasts

Several factors influence how long your heartburn episode will last.

The size of your meal. Large meals take longer to digest than small ones. The more food in your stomach, the more acid is produced to break it down, and the longer that acid has the opportunity to reflux into your esophagus. A heavy dinner may cause heartburn that lasts several hours, while a light snack may only cause brief discomfort.

The types of food you ate. Fatty, greasy, and fried foods take longer to digest than lighter foods. Rich meals sit in the stomach longer, increasing the window for acid reflux. Spicy foods, citrus, tomatoes, chocolate, coffee, and alcohol can also trigger or prolong heartburn by relaxing the lower esophageal sphincter or irritating the esophagus.

Your body position after eating. Lying down soon after eating makes it easier for stomach acid to flow back into the esophagus. Gravity helps keep acid in the stomach when you are upright. If you lie down within two to three hours of a meal, your heartburn may last longer and feel more intense.

Clothing and abdominal pressure. Tight clothing around the waist can put pressure on the stomach and push acid upward. Similarly, excess body weight increases abdominal pressure and can contribute to longer lasting or more frequent heartburn.

Individual digestive speed. Everyone digests food at a different rate. Factors like age, metabolism, and overall digestive health affect how quickly your stomach empties. Slower digestion means more time for acid to reflux.

In general, heartburn should resolve once your stomach has emptied its contents. Depending on the meal, this can take two to five hours.

When Heartburn That Will Not Go Away Could Be GERD

Occasional heartburn that lasts a few hours is common and usually not a cause for concern. However, heartburn that happens frequently or lasts for extended periods may indicate GERD.

GERD is a chronic condition where the lower esophageal sphincter, the valve between the esophagus and stomach, does not close properly. This allows stomach acid to repeatedly flow back into the esophagus, causing persistent symptoms.

If left untreated, chronic acid reflux can damage the lining of the esophagus and lead to complications.

Complications of Untreated Chronic Heartburn

When heartburn happens frequently over a long period, the constant exposure to stomach acid can injure the esophagus. This can lead to several complications.

Esophagitis is inflammation of the esophagus caused by repeated acid exposure. It can cause pain, difficulty swallowing, and further worsen heartburn symptoms.

Esophageal stricture occurs when chronic inflammation leads to scar tissue formation, causing the esophagus to narrow. This can make swallowing difficult and cause food to feel stuck.

Barrett’s esophagus is a condition where the cells lining the esophagus change due to long term acid exposure. Barrett’s esophagus increases the risk of esophageal cancer and requires regular monitoring.

Esophageal ulcers are open sores that develop in the esophagus lining due to acid damage. They can cause pain, bleeding, and difficulty swallowing.

These complications are preventable with proper treatment. If you have chronic heartburn, getting evaluated by a gastroenterologist can help protect your esophagus and reduce your risk of long term damage.

How to Relieve Heartburn Fast

When heartburn strikes, several strategies can help you find relief quickly.

Stay upright. Avoid lying down for at least two to three hours after eating. If you must rest, try propping yourself up at an angle. Gravity helps keep acid in the stomach.

Take an antacid. Over the counter antacids like Tums, Rolaids, or Maalox neutralize stomach acid and can provide quick relief for mild heartburn. Follow the package directions.

Drink water. A glass of water can help dilute stomach acid and wash any acid in the esophagus back down into the stomach. Avoid drinking large amounts at once, which can increase fullness.

Loosen tight clothing. If your waistband is tight, loosening it can reduce pressure on your stomach and provide some relief.

Try an H2 blocker or PPI. For more persistent heartburn, over the counter H2 blockers (like famotidine) or proton pump inhibitors (like omeprazole) reduce acid production. These take longer to work than antacids but provide longer lasting relief.

Chew gum. Chewing gum stimulates saliva production, which can help neutralize acid and wash it back into the stomach.

If you find yourself reaching for antacids frequently, it is important to consult a gastroenterologist to address the underlying cause rather than just treating symptoms.

How to Prevent Heartburn From Coming Back

When to See a Gastroenterologist for Heartburn

While occasional heartburn is common, certain situations warrant a visit to a gastroenterologist.

Schedule an appointment if you experience:

• Heartburn more than twice per week
• Heartburn that persists despite over the counter medications
• Difficulty swallowing or pain when swallowing
• Unintentional weight loss
• Persistent nausea or vomiting
• Blood in your stool or vomit
• Chest pain (after ruling out heart related causes)
• Chronic cough, hoarseness, or sore throat
• Heartburn symptoms for several weeks or months

A gastroenterologist can evaluate your symptoms, determine if you have GERD or another condition, and recommend appropriate treatment. In some cases, an upper endoscopy may be recommended to examine the esophagus for signs of damage.

“An endoscopy is a test that allows us to evaluate the esophagus, stomach and the first part of the small intestine for any abnormality,” explains Dr. Davidoff. “We typically do this test when a patient has heartburn that does not respond to various types of antacids, or when the patient has had long standing reflux to evaluate for Barrett’s esophagus.”

Heartburn and GERD Treatment at Gastroenterology and Nutrition, P.C.

At Gastroenterology and Nutrition, P.C. in Forest Hills, Queens, Dr. Samuel Davidoff, MD, and Dr. Yuriy Israel, MD, provide comprehensive evaluation and treatment for heartburn and GERD. Both physicians are board certified gastroenterologists with extensive experience diagnosing and managing acid reflux conditions.

The practice offers upper endoscopy on site in a state of the art, AAAASF certified facility to evaluate the esophagus for signs of damage, Barrett’s esophagus, or other conditions. After diagnosis, the team works with each patient to develop a personalized treatment plan that may include lifestyle modifications, medications, or other interventions.

True to its name, Gastroenterology and Nutrition, P.C. also offers nutrition counseling to help patients identify dietary triggers and make changes that can reduce heartburn symptoms. A personalized approach to diet can make a significant difference in managing GERD.

The office is located at 108-16 72nd Ave in Forest Hills, with appointments available Monday through Friday and Sunday mornings. The practice accepts most major insurance plans, including Medicare.

Frequently Asked Questions

Can heartburn last for days?

Heartburn from a single episode of acid reflux should not last for days. If you experience burning or discomfort in your chest that persists for days, it may indicate chronic acid reflux (GERD) or another condition. You should see a gastroenterologist for evaluation if heartburn lasts more than a few days or keeps returning.

What foods make heartburn worse?

Common foods that trigger or worsen heartburn include fatty and fried foods, spicy foods, citrus fruits and juices, tomatoes and tomato based products, chocolate, coffee and caffeinated beverages, alcohol, mint, and carbonated drinks. Keeping a food diary can help you identify your personal triggers.

Is heartburn dangerous?

Occasional heartburn is not dangerous. However, frequent or chronic heartburn can lead to complications over time, including esophagitis, esophageal strictures, Barrett’s esophagus, and in rare cases, esophageal cancer. If you have heartburn regularly, it is important to get evaluated and treated to prevent long term damage.

What is the difference between heartburn and acid reflux?

Acid reflux is the process of stomach acid flowing back into the esophagus. Heartburn is the burning sensation you feel when this happens. In other words, acid reflux is the cause, and heartburn is the symptom. Some people experience acid reflux without noticeable heartburn, while others have significant discomfort.

Can stress cause heartburn?

Stress does not directly cause acid reflux, but it can worsen heartburn symptoms. Stress may lead to behaviors that trigger heartburn, such as overeating, eating quickly, or consuming more alcohol or caffeine. Stress can also make you more sensitive to the sensation of acid in the esophagus.