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2. Post-Nasal Drip

A common reason behind a persistent cough is post-nasal drip. Excessive mucus from the nasal passages drains into the throat. This irritates the area and tickles the nerves of the nasopharynx, triggering an urge to cough, which typically gets worse at night. Post-nasal drip is extremely common during many respiratory illnesses and may persist for weeks. In some cases, it may even occur in healthy individuals.

woman tissue post nasal cough Cecilie_Arcurs / Getty Images

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Disclaimer

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.