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Types Of Allergic Disease. Common Allergic Diseases Include: Allergic rhinitis or hay fever.In the U.S., approximately 35 million people suffer from this disease, which is characterized by sneezing, congestion, itching and dripping of the nose and itchy, watery eyes.
Spring is the most common time of the year for people to experience seasonal allergy symptoms. As the weather gets warmer and plants start to bloom, trees and grasses release pollen into the air, triggering allergic symptoms in those with seasonal allergies. Colorful flowers also bloom in the spring and are often blamed as the cause of spring allergies.