What Causes Post-Nasal Drip?


Quick Answer

The causes of post-nasal drip include fumes from chemicals, colds, pregnancy, flu, certain foods, deviated septum, certain medications, an object in the nose, allergies, cold temperatures and changing weather fronts. Post-nasal drip is a condition that is characterized by high production of mucus in the throat, stomach and airways. The problem can also occur when mucus is not cleared away effectively.

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What Causes Post-Nasal Drip?
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Full Answer

People who experience post-nasal drip usually have a feeling the makes them want to clear the throat often. The feeling also makes a person have a cough, which usually gets worse during the night. In some instances, the mucus may block the Eustachian tube, which might lead to a sinus infection, as stated by WebMD. The condition may also lead to sore throat. A post-nasal drip that is caused by allergies makes a person experience headaches and itchiness in the eyes and nose.

Treatment for this condition depends on what caused it. Antibiotics are used to treat a post-nasal drip that is caused by bacteria. Decongestants and antihistamines can help conditions caused by viruses and sinusitis. Keeping the mucus thin helps to avoid blockages in the sinuses and ears. If a person experiences a foul smell, fever or wheezing, he or she needs to see a doctor.

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