What does rhinorrhea refer to?

Rhinorrhea specifically refers to the condition characterized by clear nasal drainage. This term is commonly used in medical terminology to describe a symptom often associated with allergies, upper respiratory infections, or colds. When the nasal passages become inflamed or irritated, the body produces excess mucus, which can lead to a runny nose. The term breaks down into "rhino," meaning nose, and "rrhea," meaning flow or discharge, indicating the presence of fluid from the nasal cavity.

Understanding rhinorrhea is crucial for medical professionals as it helps in diagnosing underlying conditions. Clear drainage can help distinguish between different types of rhinitis, for example, allergic versus viral, guiding appropriate treatment options. Other options mentioned—ear pain, difficulty swallowing, and sinus pain—do not directly relate to nasal drainage, which is why they do not fit the definition of rhinorrhea.