Reflux Laryngitis with Persistent Dry Cough: Why Isn't It Improving Even After Taking PPIs? | Incheon Reflux Laryngitis

— “How to understand reflux that only affects the throat”

1. “They say my cough isn’t a cold”

Hello. This is Baekrokdam Korean Medicine Clinic.

We often hear statements like these in the consultation room:

“I thought it was a cold, so I took cough medicine and cold medicine... but it hasn’t gotten better after a month.”
“My nose isn’t blocked, I don’t have a fever... my throat just feels itchy and makes me clear it constantly.”
“If I talk for a bit too long, my throat feels scratchy, and my voice quickly becomes hoarse.”
“At night, I wake up feeling like my throat is burning. I have a persistent dry cough.”

When 3 weeks, 4 weeks, or even several months pass and the cough doesn't improve, patients often hear from doctors, “Your lungs are clear, it’s not a cold... it seems like you’re just a bit sensitive.”

And some even undergo gastroscopy, only to be told, “Your esophagus and stomach are both completely clear.”

At this point, people around you might chime in:

“Why are you making such a fuss about just a cough?”
“Everyone experiences that much.”

But the person experiencing it knows. This is truly disruptive to daily life and even keeps them awake at night.

2. There’s a medical term, but diagnosis is ambiguous — What is LPR?

In such cases, one medical term often comes up: ‘reflux laryngitis,’ or in English, LPR (Laryngopharyngeal Reflux). This refers to a condition where stomach acid or stomach contents flow past the stomach, up through the esophagus, and reach the larynx and pharynx – in other words, the throat and vocal cords.

However, diagnosing this condition is quite ambiguous. Even with endoscopy, the esophagus often appears normal, and it's frequently unclear whether the refluxed contents are acidic or not.

Therefore, while doctors might diagnose it as 'appears to be LPR,' not many will definitively state, 'This is certainly LPR.'

Furthermore, visible abnormalities don't typically show up on scans like CT or MRI, making patients feel like they have a condition with no evidence. This makes it even more frustrating.

3. GERD and LPR are completely different conditions — Concept and History

Here’s an important distinction. What we commonly know as ‘reflux esophagitis,’ or GERD, involves clear esophageal symptoms like heartburn, belching, regurgitation of sour liquid, and chest pain. However, LPR manifests symptoms further up, in the pharynx, larynx, vocal cords, and airway entrance. Typical symptoms include cough, a foreign body sensation in the throat, hoarseness, and dryness of the pharynx.

The concept of LPR only began to be distinctly defined in the 1990s; before that, it was generally considered a peculiar symptom of GERD. However, it is now accepted that the two conditions have entirely different clinical pathways.

Crucially, not all GERD patients have LPR, nor do all LPR patients experience heartburn or frequent belching.

4. Why is treatment difficult — Reasons for PPI ineffectiveness

So, what’s the first treatment typically prescribed once this diagnosis is made? Usually, it's a PPI, or proton pump inhibitor. These are medications like Nexium, Pariet, and Omep.

But here's the problem: after taking the medication for several weeks, the symptoms hardly diminish. Why is that?

• First, the irritants in LPR aren't exclusively acidic stomach acid. Substances like pepsin, bile, and gases rising from the stomach can irritate the larynx even if they aren't acidic.
• Second, the larynx is far more sensitive than the esophagus. Even with the same amount of reflux, the esophagus might not react, while the vocal cords or pharynx react sensitively with cough or pain.
• Third, irritation can be exaggerated even by minor reflux. There might not be much actual reflux, but the laryngeal mucosa is already so sensitized that it triggers repeated coughing.

5. Korean Medicine Interpretation — Upward Surging Qi, Failure in Harmonizing Lung, Stomach, and Liver

In Korean medicine, this condition is understood as 'Stomach Qi failing to descend' (위기불강) or 'upward surging Qi' (기의 상역). It's a state where Qi, which should descend, becomes stagnant and surges upwards. This upward-surging Qi stimulates the lungs, causing a cough, dries up fluids in the vocal cords and throat, activates the autonomic nervous system, and disrupts sleep.

Particularly, severe coughing at night or waking up with a dry throat in the early morning can also be signs of impaired core body temperature regulation and sympathetic nervous system overactivity.

Furthermore, if this state persists, it can easily lead to a progression of Liver Qi Stagnation (간울기체) → Stomach Qi Deficiency with Cold (위기허한) → Internal accumulation of Phlegm-Dampness (담습내정). This is not merely acid reflux, but closer to a failure of overall bodily regulation.

6. Treatment is not suppression but regulation — Restoring the flow

In Korean medicine, we don't indiscriminately try to suppress the cough in such cases. This is because a cough is a 'response to expel,' not the 'problem itself.' The real problem lies in understanding why the stomach's Qi repeatedly surges upwards, why the vocal cords and throat mucosa have become so sensitive, and why the sympathetic nervous system is continually excited during sleep, and then restoring that underlying structure.

Therefore, treatment is designed as follows:

• Acupuncture to help regulate the autonomic nervous system: stabilizing cervical, thoracic, and thoracic lymphatic flow.
• Herbal medicine to clear heat and resolve phlegm around the throat: individualized prescriptions based on pattern differentiation, such as Sageon-tang, Gami Sayuk-san, Cheongyeolhwadam-bang, etc.
• Stabilizing nighttime sleep and inclining the upper body: using pillows for elevation during sleep, ensuring at least a 2-hour fasting period after meals.
• Concurrent practice of Qi-stagnation-relieving stretches and breathing exercises.

7. “It’s not sensitivity — It’s a living response”

When PPIs don't work, cough medicines are ineffective, and even tests show everything is normal, it's easy to wonder, 'Am I the only one who's strange?' But this isn't due to sensitivity. It's evidence that a living body is perceiving stimulation and reacting to it.

Instead of suppressive medication, it's time for treatment that interprets and regulates these flows. A cough might not be a symptom to be stopped, but rather the body's language that we need to understand.

#IncheonRefluxLaryngitis #DryCough #RefluxLaryngitis