What other symptoms may come with a runny nose?

Postnasal drip is a side effect of too much mucus. It occurs when the mucus goes down the back of the throat and is swallowed, which may lead to a cough or sore throat.

Sometimes, a runny nose and a congested, or stuffy, nose are seen together. Congestion occurs when the tissues lining the nose become swollen and make it difficult to breathe. The swelling is due to inflamed blood vessels. Mucus may begin to run out of the nose.

A runny nose due to a cold or flu may be accompanied by fatigue, sore throat, cough, facial pressure, and sometimes fever.

A runny nose due to allergies may be accompanied by sneezing, and itchy, watery eyes.

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