AJ PHOTO / SCIENCE PHOTO LIBRARY AJ PHOTO / SCIENCE PHOTO LIBRARY
Parental healthcare. Mother wiping her daughter's nose. The nasal membranes produce excess mucus when they are inflamed, a condition known as rhinitis. The cause of the inflammation can range from a viral infection (like the common cold) to an allergic reaction. A common allergic reaction is caused by flower pollen, and is known as hay fever. Various remedies can help treat the symptoms of a common cold. Treatment of hay fever is with antihistamine drugs.
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