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The Real Causes of Constant Phlegm and Mucus in Throat and How to Get Rid of It

That persistent feeling of mucus stuck in your throat—requiring constant clearing, coughing, or throat-rinsing—can be more than just annoying. It’s often a sign that something in your body is out of balance. While occasional phlegm is normal (your body’s way of trapping irritants), chronic mucus or post-nasal drip lasting weeks or months usually points to an underlying trigger.

Here are the most common real causes—and science-backed ways to address them.


🩺 Top 5 Real Causes (and How to Treat Them)

1. Chronic Post-Nasal Drip (From Allergies or Sinusitis)

  • What’s happening: Mucus from inflamed sinuses drains down the back of your throat.
  • Triggers:
    • Seasonal allergies (pollen, mold)
    • Year-round allergens (dust mites, pet dander)
    • Chronic sinus infections (bacterial or fungal)
  • Signs: Constant throat clearing, tickle in throat, worse at night or in the morning.
  • ✅ What to do:
    • Use a saline nasal rinse (Neti pot) daily
    • Try antihistamines (like loratadine) or nasal steroid sprays (Flonase)
    • Reduce indoor allergens: wash bedding weekly, use HEPA filters

2. Laryngopharyngeal Reflux (LPR) – “Silent Reflux

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