Why does acid reflux cause postnasal drip?

Stomach contents that reach the upper throat can inflame sensitive tissues. Some people then notice a lump-in-the-throat feeling, repeated swallowing, cough, or mucus that seems to sit at the back of the throat. Postnasal Drip is a common presentation of Acid Reflux. True nasal drainage is also often related to allergy, a cold, sinus inflammation, dry air, or irritants, so nasal symptoms deserve a broader assessment when they persist.

Avoid meals close to bedtime and remain upright after eating. Choose smaller portions if large meals bring on throat symptoms. Gentle hydration can thin secretions and may reduce the urge to clear the throat; try swallowing or sipping water instead of harsh clearing. Note whether symptoms worsen after meals, when lying flat, or around dust, perfume, or seasonal allergy triggers. These details are useful at a consultation.

Get urgent help for breathing difficulty, facial or throat swelling, inability to swallow, or coughing up blood. See a clinician for symptoms that persist, recurrent sinus pain or fever, a hoarse voice that does not settle, swallowing difficulty, or unexplained weight loss. A clinician may examine the nose, throat, and reflux pattern to guide treatment.

Ask whether your symptoms seem more likely to come from the nose, the throat, reflux, or a combination. Mention nasal sprays, antihistamines, inhalers, smoking, and the times symptoms are strongest.