Acid reflux occurs when acidic stomach contents leak up into the esophagus, and it is most commonly associated with symptoms like heartburn. If stomach acid irritates the throat or goes into the lungs, it can cause problems like excessive mucus production and wheezing. Like other reflux symptoms, these can be worse after eating. If you suffer from acid reflux and frequently wheeze or cough up mucus when eating, it’s important to recognize these symptoms so you can seek medical attention.
If you are experiencing serious medical symptoms, seek emergency treatment immediately.
Acid Reflux and Mucus
Mucus accumulation in the throat is a common symptom of acid reflux. Acid reflux after eating can occur with large meals. It can also happen with spicy food and caffeine, which allow the band of muscle separating the stomach and esophagus to relax and open. Once acidic digestive juices move upward, they can cause swelling in the throat, forming a "shelf" on which mucus accumulates. Along with the accumulation of mucus can come other throat symptoms such as hoarseness, throat clearing and chronic cough, sore throat, sensation of having something stuck in the throat and trouble swallowing. Acid reflux can also cause a post-nasal drip, which may be related to sinusitis or inflammation of the sinuses.
- Mucus accumulation in the throat is a common symptom of acid reflux.
- Once acidic digestive juices move upward, they can cause swelling in the throat, forming a "shelf" on which mucus accumulates.
Acid Reflux and Wheezing
Acid Reflux and the Lungs
Acid reflux can cause or contribute to a variety of breathing symptoms when eating, from coughing to wheezing. Wheezing with eating can happen when stomach acid refluxes from the esophagus and into the windpipe or even the lungs. This is called aspiration. When the acid irritates the breathing tubes, it makes them swell and tighten, so air cannot get through. The body's immune system produces mucus as part of its defense against the acid, further worsening symptoms. People with acid reflux may have what is called "micro-"aspiration and not know about it, especially as a cause of nighttime coughing and wheezing. If untreated, chronic aspiration can damage the lungs by causing inflammation, infection and scarring. Nighttime aspiration can be reduced by sleeping with the head of the bed at an incline of several inches, to prevent stomach contents from traveling up into the esophagus. It is also best to avoid late-night meals.
- Acid reflux can cause or contribute to a variety of breathing symptoms when eating, from coughing to wheezing.
- People with acid reflux may have what is called "micro-"aspiration and not know about it, especially as a cause of nighttime coughing and wheezing.
Acid Reflux and Asthma
Wheezing with acid reflux after eating can be due to asthma -- a chronic lung disease with symptoms like wheezing, coughing or shortness of breath. According to the 2009 "Annals of Thoracic Medicine," 30 to 80 percent of people with asthma have the chronic form of acid reflux 3. The relationship between asthma and acid reflux is complicated, and for a given person it may be difficult to tell whether acid reflux has caused the asthma or if it has made existing asthma symptoms worse. Acid reflux is thought to trigger wheezing in two ways -- by the irritating effect of acid on the breathing tubes and on a nerve in the lower esophagus, both of which make the airways tighten up. A sign that acid reflux may be contributing to asthma is if asthma symptoms get worse after eating a large meal. Another clue that acid reflux may be involved is attacks of heartburn or other reflux symptoms that occur before asthma symptoms ever begin.
- Wheezing with acid reflux after eating can be due to asthma -- a chronic lung disease with symptoms like wheezing, coughing or shortness of breath.
- A sign that acid reflux may be contributing to asthma is if asthma symptoms get worse after eating a large meal.
Reflux Cough When Eating
Acid reflux that causes any respiratory symptoms, including wheezing, excessive mucus or chronic cough, should always be evaluated by a healthcare provider 4.cause:
- Acid reflux that causes any respiratory symptoms
- including wheezing
- excessive mucus or chronic cough
- should always be evaluated by a healthcare provider (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3513884/ 'inline-reference::Therapeutic Advances in Chronic Disease; Airway Reflux
- Respiratory Disease')
Acid Reflux and the Lungs
Reflux Cough When Eating
How Shortness of Breath May Relate to Acid Reflux
Reasons for Coughing After Eating
Can Acid Reflux Cause Sinus Pain?
Acid Reflux and Congestion in Infants
Bronchitis Symptoms With Allergies
Acid Reflux and Regurgitation
Lung Allergy Symptoms
How to Clear Lungs of Phlegm
- Gastroenterology & Hepatology: Advances in GERD: Current Developments in the Management of Acid-Related GI Disorders
- Gastroesophageal Reflux and the Lung; edited by Keith C. Meyer and Ganesh Raghu
- Annals of Thoracic Medicine: Pulmonary Manifestations of Gastroesophageal Reflux Disease
- Therapeutic Advances in Chronic Disease; Airway Reflux, Cough and Respiratory Disease
- American College of Gastroenterology: Diagonosis and Management of Gastroesophageal Reflux Disease
- Medicine: Increased Risk of Chronic Sinusitis in Adults With Gastroesophgeal Reflux Disease: A Nationwide Population-Based Cohort Study
- National Institute of Diabetes and Digestive and Kidney Diseases. Symptoms & causes of GER & GERD. November 2014.
- National Institute of Diabetes and Digestive and Kidney Diseases. Diagnosis of GER & GERD. November 2014.
- Harvard Women's Health Watch. 9 ways to relieve acid reflux without medication. Harvard Health Publishing. September 10, 2019.
- US Food and Drug Administration. Over-the-counter (OTC) heartburn treatment. March 3, 2018.
Martin Booe writes about health, wellness and the blues. His byline has appeared in the Washington Post, the Los Angeles Times and Bon Appetit. He lives in Los Angeles.