Post-nasal drip
Post-nasal drip (PND), also recognized as upper airway cough syndrome (UACS), is a condition resulting from the excessive production of mucus by the nasal mucosa. This surplus mucus accumulates in the back of the nose and, once it drips down, in the throat.
Causes[edit | edit source]
The underlying causes of PND can be varied and multifaceted:
- Rhinitis: An inflammation of the nasal mucosa, causing a high production of mucus.
- Sinusitis: Inflammation or swelling of the tissue lining the sinuses can lead to an increased mucus production.
- Gastroesophageal reflux disease (GERD): A chronic condition where stomach acid frequently flows back into the tube connecting the mouth and stomach (esophagus). This backwash (acid reflux) can irritate the lining of the esophagus and cause PND.
- Swallowing disorders: Such as esophageal motility disorders, can cause a sensation of mucus in the throat.
- Allergies, common cold, and flu: These conditions lead to an increase in mucus production as part of the body's defense mechanism.
- Side effects from certain medications: Certain drugs, like those used for high blood pressure, can cause an increase in mucus production.
Symptoms[edit | edit source]
Symptoms of PND can include a feeling of mucus trickling down the back of the throat, frequent swallowing or clearing of the throat, cough, and a sore or scratchy throat. In some cases, it can lead to difficulty swallowing (dysphagia) or a nagging cough.
Diagnosis and Treatment[edit | edit source]
Diagnosis usually involves a physical examination and a review of medical history. Further tests, such as nasal and sinus cultures or X-rays, may be done if an underlying condition is suspected.
Treatment of PND aims at addressing the underlying cause. This can involve antibiotics for bacterial infections, antihistamines or corticosteroids for allergies, or proton pump inhibitors for GERD. Over-the-counter decongestants and mucus thinners may also be recommended.
References[edit | edit source]
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