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What Causes a Constant Runny Nose?

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Do you carry a box of tissues in your pocket, because your nose is always runny? A constant runny nose is an annoyance and an inconvenience - but what causes this problem?

The most common cause of a constant runny nose is perennial rhinitis. Unlike seasonal allergic rhinitis, an allergic reaction that occurs when certain plants and trees are blooming outdoors, perennial rhinitis is an annoyance year round and is usually caused by indoor allergens such as dust mites, mold, and pet dander.

In addition to a constant runny nose, perennial rhinitis causes itchy eyes, nose, and throat and itching and sneezing. Many of the triggers for perennial rhinitis are found outside, so you can't escape the problem by taking shelter in your home. Having a constant runny nose year-round causes a significant amount of distress for many perennial rhinitis sufferers.
Treating Perennial Rhinitis The first step towards fixing a constant runny nose is to identify the allergic triggers. This usually invol…