Runny Nose? — or — Post Nasal Drip?

What's the difference between runny nose and post-nasal drip?

A runny nose refers to excess mucus flowing out of the nose, while post-nasal drip is when excess mucus drips down the back of the throat.  Both are often caused by similar factors like colds, allergies, or sinus infections.  Here's a more detailed explanation:

Runny Nose:

Definition:  A runny nose, also known as rhinorrhea, is when mucus flows out of the nose. 

Causes:  Runny noses can be caused by various factors, including colds, allergies, sinus infections, and even environmental irritants. 

Symptoms:  Besides the discharge, other symptoms may include nasal congestion, sneezing, and itching or watery eyes. 

Post-Nasal Drip:

Definition:  Post-nasal drip is when excess mucus from the nose and sinuses drips down the back of the throat. 

Causes:  Similar to runny nose, post-nasal drip can be caused by colds, allergies, sinus infections, and other irritants. 

Symptoms:  Common symptoms include a sore throat, cough, hoarseness, and a feeling of mucus gathering in the throat, which can lead to frequent throat clearing.