Seasonal Allergies (Allergic Rhinitis) | NCCIH

Seasonal Allergies (Allergic Rhinitis) | NCCIH

Seasonal Allergies (Allergic Rhinitis)

Courtesy of CDC/Janice Carr

More than 7 percent of adults and about 9 percent of children in the United States have seasonal allergies, also called allergic rhinitis or hay fever. In a person with an allergy, the immune system treats a normally harmless substance as a threat and attacks it, producing symptoms of an allergic reaction. Many complementary health approaches have been studied for allergic rhinitis.