Which condition is a runny nose caused by airborne allergens?

Which condition is a runny nose caused by airborne allergens?

• A. Otitis externa
• B. Nasal polyps
• C. Otitis media
• D. Rhinitis

Answer: (D)

Allergic rhinitis involves inflammation of the nasal lining caused by inhaled airborne allergens such as pollen, dust mites, or pet dander. When these allergens are breathed in, the immune system releases histamine and other mediators, leading to swelling of the nasal tissues and increased mucus production. That combination produces a runny nose, along with sneezing and itching. The other options are not about nasal allergic inflammation: ear infections like otitis externa and otitis media affect the ear, and nasal polyps are growths that can cause congestion but aren’t defined by a runny nose caused specifically by airborne allergens.

Allergic rhinitis involves inflammation of the nasal lining caused by inhaled airborne allergens such as pollen, dust mites, or pet dander. When these allergens are breathed in, the immune system releases histamine and other mediators, leading to swelling of the nasal tissues and increased mucus production. That combination produces a runny nose, along with sneezing and itching. The other options are not about nasal allergic inflammation: ear infections like otitis externa and otitis media affect the ear, and nasal polyps are growths that can cause congestion but aren’t defined by a runny nose caused specifically by airborne allergens.