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What causes irritable mood and stuffy nose? 3 possible conditions

See a list of possible causes in order from the most common to the least.

1

Sinus Infections (Sinusitis)

A sinus infection, or sinusitis, is a common condition that affects 30 million people in the United States each year, according to the National Institute of Allergy and Infectious Diseases. The infection occurs whe...

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2

Encephalitis

This condition is considered a medical emergency. Urgent care may be required.

Encephalitis is inflammation of the brain tissue. It's most often caused by viral infections. In some cases, bacterial infections can also cause encephalitis.

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3

Cluster Headaches

Cluster headaches are severely painful and occur in cycles. Read more for tips on how to treat and relieve them.

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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