That persistent feeling of mucus stuck in your throat, the need to constantly clear your throat, or a nagging post-nasal drip—these aren’t just annoying. They’re signals from your body that something is off balance. While occasional mucus is normal (it protects your airways!), chronic phlegm often points to an underlying trigger.

Here’s a clear, science-backed look at the most common causes—and practical, effective solutions.

🩺 Top 6 Causes of Constant Throat Mucus
1. Post-Nasal Drip (Most Common)
What it is: Excess mucus from the sinuses drips down the back of your throat.
Triggers:

Allergies (pollen, dust, pet dander)
Sinus infections (acute or chronic)
Cold or flu
Weather changes (dry or humid air)
Signs:
Frequent throat clearing
Tickling cough (worse at night)
Nasal congestion or runny nose2. Acid Reflux (Silent Reflux / LPR)
What it is: Stomach acid irritates the throat—even without heartburn. Known as Laryngopharyngeal Reflux (LPR).
Triggers:

Spicy, fatty, or acidic foods
Eating late at night
Alcohol, coffee, chocolate
Large meals
Signs:
Lump-in-throat sensation (“globus”)
Hoarse voice (especially in the morning)
Chronic cough without infection
Bitter taste in mouth
✅ Solution:

Avoid eating 3–4 hours before bed
Elevate head of bed 6–8 inches
Cut trigger foods (coffee, citrus, mint, fried foods)
Chew gum (stimulates saliva to neutralize acid)
See a doctor if persistent—may need PPIs or evaluation
3. Food Sensitivities (Especially Dairy)
What it is: For some, dairy (milk, cheese, yogurt) thickens mucus or increases production—not due to allergy, but a textural reaction.
Note: Science is mixed, but many people report relief when cutting dairy.
Other culprits: Gluten, soy, or processed foods (in sensitive individuals).

✅ Solution:

Try a 2–3 week dairy elimination—then reintroduce to test
Replace with oat, almond, or soy milk (if tolerated)
Focus on whole, anti-inflammatory foods
4. Chronic Sinusitis or Nasal Polyps
What it is: Inflamed sinuses or growths block drainage, causing constant mucus buildup.
Signs:

Facial pressure/pain
Reduced sense of smell
Mucus is thick, yellow, or green for weeks
No relief from OTC meds