7Cough caused by post-nasal drip
Post-nasal drip happens when the excessive mucus accumulates in and drips down the back of your nose and throat, making you constantly cough up the thick mucus to clear the throat. Causes of a post-nasal drip are various. Allergies, sinus infections, virus infections, irritants, fumes, dry weather, spicy foods, pregnancy, and others could be possible triggers. Generally, cough caused by post-nasal drip would last for weeks or months, and it often gets worse at night. If the post-nasal drip symptoms linger for more than ten days, or unusual signs including bloody mucus, short breath, foul-smelling drainage, and unexplained fever appear, it is recommended to see a doctor for medical advice. [7]
