Silent Reflux (LPR) Treatment: What Works and What Are Your Options?

UNDERSTANDING SILENT REFLUX

By Team Sootha | Published October 14, 2026 | Last updated October 14, 2026

Silent reflux (LPR) treatment typically involves dietary changes, lifestyle adjustments, medications, and sometimes medical procedures. But treating the underlying reflux is only part of the picture. People with silent reflux also want relief from persistent coughing, throat clearing, hoarseness, and throat irritation.

Alkaline water has attracted scientific interest as a way to manage the effects of reflux, particularly because of its ability to neutralize acid and inactivate pepsin under laboratory conditions. Buffered alkaline water, including products such as Sootha, takes this approach a step further by focusing on acid-neutralizing capacity rather than pH alone.

Understanding the difference between treating reflux and managing its symptoms can help you evaluate the available options.

What Is Silent Reflux (LPR)?

Silent reflux, medically known as laryngopharyngeal reflux (LPR), occurs when stomach contents travel upward into the throat and voice-box region.

Unlike gastroesophageal reflux disease (GERD), which commonly causes heartburn and regurgitation, silent reflux often produces symptoms that don’t immediately suggest a digestive problem.

Common symptoms include:

• Persistent dry cough
• Frequent throat clearing
• Hoarseness or voice changes
• A sensation of something stuck in the throat
• Excess mucus
• Throat irritation or burning
• A persistent sore throat

One reason LPR can be frustrating is that symptoms may continue even when someone doesn’t experience heartburn.

Pepsin, a digestive enzyme found in stomach contents, is one reason researchers have paid particular attention to reflux affecting the throat. Pepsin helps digest proteins in the stomach, but its presence in the throat may contribute to irritation.

Not every chronic cough or throat problem is caused by reflux, however. Allergies, respiratory conditions, and voice disorders can produce similar symptoms.

What Are the Main Treatments for Silent Reflux?

Silent reflux management generally involves two related but different goals:

1. Reducing reflux itself. This includes measures intended to decrease the frequency of reflux episodes, reduce stomach acid production, or improve the physical barrier between the stomach and esophagus.

2. Managing the effects of reflux. These approaches focus on acid exposure, pepsin, and the throat symptoms associated with LPR.

The distinction matters because reducing stomach acid is not the same as preventing reflux, and managing the effects of reflux is not necessarily the same as correcting its underlying cause.

Let’s start with symptom management, an important part of living with silent reflux.

Managing Silent Reflux Symptoms: Can Alkaline Water Provide Relief?

Treating the underlying cause of reflux is important, but people experiencing LPR symptoms are also interested in ways to manage the effects of reflux on their throats.

Alkaline water has emerged as an area of scientific interest because of two properties: its ability to neutralize acid and its interaction with pepsin.

These properties are different from the mechanisms of conventional reflux medications.

Why acid and pepsin matter

Stomach contents contain hydrochloric acid and pepsin, a digestive enzyme that breaks down proteins.

When stomach contents travel upward into the throat, these substances can come into contact with tissues that are less protected against reflux than the stomach.

Pepsin is particularly interesting because it functions in acidic conditions. Research suggests that pepsin deposited in tissues can potentially become active again when exposed to acid.

This has led researchers to investigate whether alkaline conditions can affect pepsin activity.

What does research say about alkaline water and pepsin?

A 2012 laboratory study by Jamie Koufman and Nikki Johnston examined alkaline water with a pH of 8.8.

The researchers found that the tested water irreversibly inactivated human pepsin under laboratory conditions.

They also measured the water’s ability to buffer hydrochloric acid.

“The pH 8.8 alkaline water irreversibly inactivated human pepsin (in vitro), and its hydrochloric acid-buffering capacity far exceeded that of the conventional-pH waters.”

Koufman & Johnston, 2012
Annals of Otology, Rhinology & Laryngology
Read the published research

The study established two relevant properties of the tested alkaline water: pepsin inactivation and acid-buffering capacity.

It was a laboratory study rather than a clinical trial measuring symptom relief, but it provides a scientific explanation for why alkaline water has become part of the discussion surrounding LPR.

Why buffered alkaline water is different

Not all alkaline waters have the same ability to neutralize acid.

The pH number printed on a bottle tells you how alkaline the water is at that moment. It doesn’t tell you how much acid the water can neutralize before its pH falls.

That depends on buffering capacity.

For example, two waters can both have a pH of 9, but one may contain more buffering compounds, such as bicarbonate, than the other.

When acid is introduced, the water with greater acid-neutralizing capacity can neutralize more of it before reaching a specified pH.

This is an important distinction when evaluating alkaline water in the context of reflux.

Where Sootha fits in

Sootha is a buffered alkaline water product developed with acid-neutralizing capacity as a central feature.

Instead of emphasizing a high pH number alone, Sootha uses a measured combination of buffering minerals to create buffered alkaline water.

Each pre-measured sachet is added to ordinary drinking water, providing a convenient alternative to purchasing bottled alkaline water.

Sootha’s formulation reflects the distinction highlighted by the research: pH is one property of alkaline water, but buffering capacity determines how much acid it can neutralize.

Sootha is not designed to prevent stomach contents from refluxing into the throat. Its relevance to the LPR conversation is the chemistry of buffered alkaline water and the scientific interest in managing acid and pepsin exposure.

For more on this distinction, read Buffered Alkaline Water vs. Regular Alkaline Water: What’s the Difference?

Has alkaline water been studied in people with LPR?

Yes.

In 2017, researchers published a study comparing two approaches to LPR management.

One group received proton pump inhibitors and standard reflux precautions. The other followed a predominantly plant-based Mediterranean-style diet, drank alkaline water, and followed standard reflux precautions.

After approximately six weeks, 62.6% of patients in the diet-and-alkaline-water group achieved a clinically meaningful reduction in their Reflux Symptom Index scores, compared with 54.1% in the medication group.

The difference between these response rates was not statistically significant.

The findings showed that a dietary approach incorporating alkaline water was associated with meaningful symptom improvement. Because the intervention combined several measures, the study could not determine how much improvement came specifically from alkaline water.

Read the Zalvan et al. study (2017)

Treating Silent Reflux: What Are the Main Options?

While alkaline water has attracted interest for its chemical properties, conventional LPR management also focuses on reducing reflux episodes and addressing underlying contributing factors.

1. Dietary changes

Diet is frequently an important part of reflux management.

Some foods and beverages may increase reflux episodes, while others can irritate an already sensitive throat.

Commonly identified triggers include:

• Coffee and caffeinated drinks
• Alcohol
• Citrus fruits and juices
• Tomato-based foods
• Chocolate and peppermint
• High-fat meals
• Spicy foods
• Carbonated beverages

Individual responses vary, so identifying personal triggers may be more useful than eliminating every potentially problematic food.

The 2017 Zalvan study discussed earlier provides evidence that a Mediterranean-style dietary approach, combined with alkaline water and reflux precautions, can be associated with improvements in LPR symptoms.

2. Lifestyle changes

Several practical changes may reduce reflux exposure.

Avoid eating shortly before bed. Leaving approximately two to three hours between the last meal and lying down may reduce nighttime reflux.

Eat smaller meals. Large meals can increase stomach distension and contribute to reflux.

Elevate the head of the bed. For people with nighttime symptoms, sleeping with the upper body elevated can reduce acid exposure.

Consider sleeping on the left side. This position may reduce nighttime gastroesophageal reflux.

Manage excess weight when relevant. Weight reduction can improve reflux symptoms in people who are overweight.

These recommendations are supported most clearly by GERD research and are frequently incorporated into LPR management.

3. Alginate therapy

Alginate therapy works differently from acid-suppressing medications.

Alginates are derived from brown seaweed. Certain formulations react with stomach contents to create a floating, gel-like barrier known as a raft.

This barrier can reduce the movement of stomach contents into the esophagus.

A 2022 randomized controlled trial compared a magnesium alginate suspension with omeprazole in patients diagnosed with LPR.

Both groups experienced improvements in symptom scores, and alginate was found to be non-inferior to omeprazole over the two-month study period.

Alginates are therefore an option worth discussing in reflux management, particularly because their mechanism is physical rather than primarily acid-suppressing.

Read the 2022 alginate study

4. Proton pump inhibitors (PPIs)

Proton pump inhibitors reduce the amount of acid produced by the stomach.

Common examples include omeprazole, esomeprazole, lansoprazole, and pantoprazole.

These medications are well established in the treatment of GERD and certain other acid-related conditions.

However, research into their effectiveness for persistent throat symptoms attributed to LPR has produced mixed results.

A large randomized controlled trial published in The BMJ in 2021 found that lansoprazole did not provide a significant benefit over placebo for persistent throat symptoms in the patients studied.

One explanation is that PPIs reduce acid production but do not necessarily stop stomach contents from refluxing. Another is that persistent throat symptoms can have causes other than reflux.

PPIs remain useful for appropriately diagnosed acid-related conditions, but their role in isolated throat symptoms requires more careful evaluation.

Read the TOPPITS trial

5. H2 blockers

H2 blockers reduce stomach acid production through a different mechanism from PPIs.

Famotidine is one commonly used example.

These medications may be considered in selected reflux-management plans, including some cases involving nighttime acid symptoms.

However, clinical evidence specifically supporting H2 blockers for LPR-related throat symptoms is limited.

6. Speech and voice therapy

Some people with persistent throat symptoms develop heightened sensitivity in the larynx or patterns of repeated coughing and throat clearing.

These behaviors can contribute to continued irritation.

Specialized speech and voice therapy may address:

• Chronic cough and cough suppression
• Repeated throat clearing
• Voice strain
• Breathing patterns
• Laryngeal sensitivity

This can be particularly relevant when symptoms continue despite reflux management or when a separate voice or cough disorder is involved.

7. Anti-reflux procedures

Surgical and other anti-reflux procedures aim to reduce the physical movement of stomach contents into the esophagus.

Fundoplication is one established example.

These interventions are generally considered for selected patients with objective evidence of reflux, rather than as first-line treatments for unexplained throat symptoms.

Because chronic throat symptoms have multiple possible causes, confirming the role of reflux is particularly important before considering an invasive procedure.

How Long Does Silent Reflux Take to Improve?

There is no universal timeline.

Some people notice improvements within several weeks of making dietary or lifestyle changes. Others experience symptoms for longer periods, particularly when chronic cough, voice problems, or heightened throat sensitivity are involved.

The underlying cause matters.

Someone with reflux-related irritation may respond differently from someone whose symptoms are primarily caused by allergies, a voice disorder, or cough hypersensitivity.

If symptoms continue despite treatment, further evaluation may be needed to determine whether reflux is responsible.

Persistent hoarseness, swallowing difficulties, unexplained weight loss, or other concerning symptoms warrant medical assessment rather than prolonged self-treatment.

Frequently Asked Questions About Silent Reflux Treatment

What is the best treatment for silent reflux?

The best approach depends on the cause of the symptoms. Dietary and lifestyle changes, alginate therapy, and selected medications are commonly considered. Some patients also benefit from voice therapy or other specialized treatment.

Can silent reflux improve without medication?

Yes. Some people experience improvement through dietary changes, meal timing, and other lifestyle adjustments. Others require additional treatment.

Can alkaline water relieve silent reflux symptoms?

Alkaline water has been studied as part of LPR management. Laboratory research has demonstrated its ability to inactivate pepsin and buffer acid, while a clinical study found symptom improvements with a combined dietary and alkaline-water approach. Its independent effect on symptom relief has not been established by that study.

Is buffered alkaline water better than regular alkaline water for LPR?

Buffered alkaline water is specifically formulated to provide acid-neutralizing capacity. Two alkaline waters with the same pH can have different buffering capacities, although some regular alkaline waters also contain buffering minerals. Direct clinical comparisons establishing which type provides better LPR symptom relief are not yet available.

Why doesn’t omeprazole always work for silent reflux?

Omeprazole reduces stomach acid production but does not necessarily prevent reflux episodes. Persistent throat symptoms may also be caused by conditions other than reflux.

Is Gaviscon useful for silent reflux?

Some Gaviscon formulations contain alginate, which creates a physical barrier above stomach contents. Alginate therapy has shown promising results in LPR studies. Product formulations vary by country.

Can silent reflux cause a chronic cough without heartburn?

Yes. Chronic cough is one symptom associated with LPR, and heartburn may be absent. However, coughing has many potential causes, so reflux should not automatically be assumed to be responsible.

Can silent reflux be cured permanently?

Some people experience lasting improvement when contributing factors are addressed. Others require ongoing management. The outlook depends on the underlying cause and whether reflux is the primary driver of symptoms.

The Bottom Line

Silent reflux management involves two important goals: reducing reflux itself and managing its effects.

Dietary changes, lifestyle adjustments, alginate therapy, medications, and specialized treatments can all play a role.

Alkaline water occupies a different position in this discussion. Its relevance comes from its acid-neutralizing properties and the laboratory research demonstrating an effect on pepsin.

Buffered alkaline water adds another important distinction: acid-neutralizing capacity, not simply pH.

That is the science behind Sootha’s approach to buffered alkaline water and its relevance to people researching silent reflux.