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What causes postnasal drip and sinusitis? 2 possible conditions

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


Sinus Infections (Sinusitis)

A sinus infection causes the sinuses and nasal passages to become inflamed. Facial swelling is a common sign of this type of infection.

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Allergic Rhinitis

Allergic rhinitis, also known as "hay fever," refers to symptoms that occur after exposure to a certain allergen, such as pollen. Swollen eyes or face may accompany allergic rhinitis.

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Please consult a healthcare professional if you have health concerns.