Could Silent Reflux Be Causing My Drainage — Without Heartburn?

Short answer: Yes — absolutely. Laryngopharyngeal reflux (LPR), commonly called silent reflux, is one of the most frequently missed causes of chronic post-nasal drainage, throat clearing, hoarseness, cough, and globus sensation. Unlike GERD — which most patients recognize because of heartburn — LPR travels far enough up the esophagus to reach the back of the throat and the posterior nasal lining without producing any burning sensation. No heartburn does not mean no reflux. Because we cannot easily measure pepsin levels in the office to confirm LPR, it remains a clinical diagnosis — and one that requires patient trust in a treatment plan that initially feels counterintuitive.

By Dr. Franklyn R. Gergits, MBA, DO, FAOCO · Board-Certified Otolaryngologist · Fellowship-Trained Otolaryngic Allergist · Clinical Focus in Rhinology and Airway Disorders · 30+ Years of Experience · Founder, Sinus & Allergy Wellness Center of North Scottsdale

The Difference Between GERD and LPR

Most patients know what GERD is — or at least what it feels like. Gastroesophageal reflux disease produces heartburn, that burning sensation behind the sternum that comes after eating acidic foods, lying down after a meal, or consuming alcohol or caffeine. Most people have experienced it at least occasionally. Many have used antacids, H2 blockers, or proton pump inhibitors to manage it. GERD is familiar. Patients recognize it in themselves.

LPR is different — and that is precisely why it gets missed.

In LPR, the refluxate — stomach acid and, critically, the enzyme pepsin — travels not just up the esophagus but all the way past the upper esophageal sphincter into the pharynx, the larynx, and in many cases the posterior nasal cavity. At these anatomical levels, the tissue has little tolerance for acid or pepsin exposure. The mucosal lining of the throat and posterior nasal space was never designed to handle gastric contents. Even brief, intermittent exposure — especially from pepsin, which can remain active in tissue long after the acidic reflux event — causes mucosal inflammation that drives the symptoms patients experience.

But because the reflux does not linger in the esophagus long enough to produce the burning sensation of GERD, patients have no heartburn. They have drainage. They have throat clearing. They have a persistent feeling of something stuck in the throat — what we call globus pharyngeus. They have hoarseness in the morning. They have a cough that never completely resolves. And they have been told, repeatedly, that their sinuses look fine.

Why LPR Is So Difficult to Diagnose — and So Easy to Miss

In an ideal world, diagnosing LPR would involve measuring pepsin levels in the nasal lavage or saliva — a direct biomarker of LPR that would confirm the diagnosis with certainty. The research in this area is advancing. But in current clinical practice, a reliable, accessible office-based pepsin assay is not routinely available. We cannot simply run a test and show a patient: here is your pepsin level, here is the proof that reflux is reaching your throat and nasal lining.

This creates a genuinely difficult clinical conversation. When I tell a patient — who has no heartburn, no GERD history, and no obvious relationship between their symptoms and meals — that I believe silent reflux is driving their chronic drainage, I am asking them to trust a clinical diagnosis without a confirmatory test. And when the treatment I am recommending involves significant dietary and lifestyle changes — eliminating acidic foods, caffeine, alcohol, carbonated beverages, eating nothing for three hours before bed, elevating the head of the bed four to six inches, drinking alkaline water, and potentially starting alginate therapy — I am asking them to make substantial modifications to their daily life on the basis of a clinical judgment rather than a positive test result.

The honest response from many patients is something close to: no thank you. They have lived with the drainage for years. The idea that coffee, wine, and lying down after dinner are the culprits — when they feel no heartburn — is not an easy sell.

I understand that response. And I tell patients I understand it. But I also tell them what happens if the upstream cause is not addressed: the sinus treatments will help temporarily, the drainage will return, the throat clearing will continue, and we will keep treating symptoms that have a cause we have not fixed.

Why the Treatment Feels So Counterintuitive

The LPR treatment protocol — what we sometimes call the no-acid or low-acid approach — targets pepsin as much as it targets acid. This is an important distinction. Pepsin is the enzyme that causes much of the mucosal damage in LPR. Pepsin is activated by acid — so reducing acid exposure reduces pepsin activity. But pepsin can also be reactivated by low-pH substances even after the acute reflux event has passed. This is why alkaline water (pH above 8.8) has a role in LPR management — it can help deactivate pepsin that has already reached the mucosal surface.

The dietary changes that are most impactful: avoiding coffee, alcohol, carbonated beverages, citrus, tomato products, chocolate, and spicy foods. Eating smaller meals. Never eating within three hours of lying down. Sleeping with the head of the bed elevated — not just a pillow, but actual elevation of the bed frame at the head — to use gravity to keep gastric contents below the upper esophageal sphincter overnight.

Alginate preparations — over-the-counter products like Gaviscon Advance — form a physical barrier that floats on top of the gastric contents and prevents reflux from reaching the esophagus and beyond. In LPR, where the problem is the upward migration of the refluxate rather than the volume of acid alone, alginates can be more effective than acid suppressants alone.

None of this is easy. All of it requires commitment. And without a positive test in hand to show the patient, asking for that commitment is one of the more challenging conversations in rhinology.

What Changes When LPR Is Identified and Treated

When a patient commits to the LPR protocol — truly commits, for eight to twelve weeks — and the drainage improves, the throat clearing resolves, and the globus sensation diminishes, the diagnosis becomes self-confirming. The treatment response is the proof. And patients who experience that response invariably understand, in retrospect, what the upstream driver was doing to their airway.

The connection between LPR and chronic rhinosinusitis is one of the central pillars of the Posterior Sinonasal Syndrome framework developed at SAWC — the clinical hypothesis that pepsin-mediated posterior nasal mucosal injury is an upstream driver of chronic rhinosinusitis. When the pepsin reaches the posterior nasal lining, it damages the epithelial barrier, impairs mucociliary clearance, promotes bacterial adhesion, and creates the conditions for recurrent sinus infections. Treating the sinus without addressing the LPR is treating the downstream consequence of an upstream cause that has not been identified.

Dr. G’s Pearls

▸ No heartburn does not mean no reflux. LPR reaches the throat and nose without burning the esophagus. If your drainage, throat clearing, or globus has never responded to sinus treatment — ask your provider specifically about LPR.

▸ Pepsin is the villain in LPR, not just acid. Pepsin can remain active in mucosal tissue and be reactivated by dietary acid even hours after the reflux event. Alkaline water and alginates target pepsin in ways that acid suppressants alone do not.

▸ The three-hour rule before bed is non-negotiable for LPR management. Lying down with a full stomach — even a low-acid stomach — allows refluxate to migrate upward. Gravity is your friend overnight only if you use it correctly.

▸ The LPR treatment protocol is demanding — but so is years of unresolved drainage. Eight weeks of dietary discipline is a reasonable investment to determine whether LPR is the upstream driver of symptoms you have been managing for years without resolution.

▸ If you are being treated for chronic sinus disease and no one has asked about reflux — ask them. LPR is the most consistently missed upstream cause of posterior nasal inflammation in rhinology. It does not announce itself with heartburn. It announces itself with drainage that never responds to antibiotics.

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About the Author

Dr. Franklyn R. Gergits, MBA, DO, FAOCO is a Board-Certified Otolaryngologist and Fellowship-Trained Otolaryngic Allergist with a Clinical Focus in Rhinology and Airway Disorders and over 30 years of clinical experience. He is the founder of the Sinus & Allergy Wellness Center of North Scottsdale, where he performs in-office balloon sinuplasty, turbinate reduction, NEUROMARK® posterior nasal nerve ablation (Neurent Medical, FDA-cleared radiofrequency ablation system), and Eustachian tube dilation under local anesthesia. He performed the first balloon sinuplasty in Pennsylvania and holds dual Entellus Centers of Excellence certifications. Dr. Gergits is the originator of the Posterior Sinonasal Syndrome (PSS) hypothesis — a clinical framework identifying pepsin-mediated posterior nasal mucosal injury as an upstream driver of chronic rhinosinusitis. Preprint available at Preprints.org (DOI: 10.20944/preprints202603.0858.v1). ORCID: 0009-0000-4893-6332.

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This content is for educational purposes only and does not constitute medical advice. Laryngopharyngeal reflux requires evaluation and management by a qualified physician. If you believe silent reflux may be contributing to your symptoms, please discuss this with your otolaryngologist or gastroenterologist for individualized evaluation and treatment.