National Center for Complementary and Integrative Health (NCCIH)
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Seasonal Allergies (Allergic Rhinitis)

Under a moderately high magnification of 888x, this scanning electron micrograph (SEM) revealed some of the morphologic ultrastructural surface details of one of the very small flower buds clustered in the center of a white dogwood flower, Cornus florida.

Courtesy of CDC/Janice Carr

Allergic rhinitis (hay fever) is a common health problem; about 8 percent of adults and children in the United States have it. If you have an allergy, your immune system reacts to something that doesn’t cause problems for most people. Many complementary health approaches, including both mind and body practices and natural products, have been studied for allergic rhinitis.

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This page last modified September 24, 2017