Allergies are among the most common diseases experienced by Americans. They are believed to complicate the lives of as many as 40 million adults and children in the United States. That means allergies are the country's sixth most prevalent chronic condition. The symptoms Sneezing. Watery, itchy eyes.
Nasal congestion can be one of the key symptoms of allergy.
It is a natural part of the body's inflammatory response to histamine and other allergens. An allergy may be a seasonal problem that occurs only once or twice a year in the spring and late summer. One of the most common allergic diseases is seasonal allergic rhinitis, sometimes called hay fever. Perennial allergic rhinitis may be triggered by dust mites, molds, and animal dander throughout the year. Mechanics of the allergic response When pollen enters your system, it attaches to the IgE of mast cells.