Understanding Rhinorrhea: Uncovering the Top 10 Causes of a Runny Nose

2. Allergies: The Body’s Mistaken Identity Crisis

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Allergies The Body's Mistaken Identity Crisis
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Sneezing, itching, and a runny nose can often be attributed to allergies. This is the body’s misguided defense against harmless substances. When pollen, pet dander, or dust enter the picture, the body sometimes overreacts, mistaking them for serious threats.

Histamine is the chemical alarm bell in this process. It causes blood vessels in the nasal passages to swell. This inflammation leads to the production of mucus. The result is a runny nose, often accompanied by itchy eyes and frequent sneezing.

For some, allergies are a seasonal visitor. They come with spring’s bloom or fall’s decay. For others, allergies are unwelcome year-round residents. They can start unexpectedly, at any age, making even the simplest breathing a challenge.

Managing allergies often involves a combination of avoiding known triggers and using medications. Antihistamines, decongestants, and nasal corticosteroids can offer relief. For those with severe allergies, immunotherapy or allergy shots might be the path to long-term relief. (2)

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