Rhinorrheais the medical term used to describe a runny nose.
This article describes the symptoms and causes of rhinorrhea.
It also discusses possible treatments for a runny nose and when it is time to see a healthcare provider.
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Rhinorrhea happens when excessive amounts of mucus are produced bymucosal tissueslining the nasal passages.
Both nostrils are involved in most cases.
This can directly or indirectly affect mucus-producing cells called goblet cells.
Inflammationcan occur in response to an infection or allergies.
When exposed to irritants, goblet cells will produce more mucus to help reset the irritant.
Certain drugs and environments can also activate goblet cells.
It sometimes occurs with intense exercise or hormonal changes such as pregnancy.
What Medications Can Cause a Runny Nose?
Some oral medications can also cause rhinorrhea.
They do so by affecting theautonomic nervous systemthat directs involuntary functions, including how glands and blood vessels work.
There may be other drugs you could be switched to that won’t cause this problem.
Certain recreational drugs, likecocaineandcrystal methamphetamine, also can cause rhinorrhea.
Are There Tests to Diagnose a Runny Nose?
Rhinorrhea is a symptom of an underlying condition like an allergy or infection.
As such, the diagnosis would involve an investigation of possible underlying causes.
Even so, somechronic(persistent or recurrent) cases may need ongoing management.
This includes chronic sinusitis sparked by problems like adeviated septumornasal polyps.
Colds, flu, COVID-19, sinus infections, and allergies are among the most common explanations.
Rhinorrhea using clears on its own when the underlying cause is treated.
In people with chronic rhinorrhea or acute symptoms, over-the-counter nasal drops or antihistamines may help.
Rhinorrhea is usually not serious.
However, you should see a healthcare provider if symptoms are severe or your runny nose is getting worse.
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