Introduction
Allergies are caused by the immune system's overreaction to substances mistaken for being harmful to the body. Common allergens include, pollen, mold, animal dander, dust and food. Allergic reactions can range from mild to severe, and in very severe cases, anaphylaxis can occur.
What Are Allergies?
Allergies are a result of the overreaction of the immune system to substances mistaken to be harmful, but actually are not.…
Am I At Risk?
Allergic rhinitis affects between 20 to 40 million Americans, and though often occurs in childhood, can develop at any age. About 20 percent of allergic rhinitis cases are…
Causes
The allergic process is called atopy, and occurs when a person comes into contact with an allergen. The allergen sets off a cascade of events in the immune system that leads…
Symptoms
The symptoms of seasonal allergy include runny nose, repetitive sneezing, and itching in the eyes, nose throat or roof of the mouth. Prolonged allergy symptoms include nasal…
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5 Great Places to Live in the United States if You Have Allergies
Twice every year the Asthma and Allergy Foundation of America analyzes a variety of factors to come up with the worst places to live in the United States. The factors they look at include: Pollen score Average medication use per patient Number…
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