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INFORMATION |
Insight into causes, treatment, and prevention
Forty-five million Americans suffer from a recurring problem called allergy. Allergic rhinitis was once known as hay fever because workers would sneeze and develop nasal and sinus congestion when they worked around hay in the fields. Hay fever, asthma, and eczema are the most common symptoms of an allergic reaction. Allergy symptoms appear when the body's immune system begins to respond to a substance as though it were a dangerous invader (called an antigen or allergen). It does this by sending specific defenders called antibodies to the entry site. The battle between allergen and antibody results in a release of chemical mediators, such as histamine, into the bloodstream. Those chemical mediators cause changes in the body, which produce the symptoms that we feel. Symptoms that may be caused by allergy are itching eyes, sneezing, nasal stuffiness, nasal congestion and drainage, and sometimes headache. Some people experience hearing changes, scratchy sore throats, hoarseness, and cough. Other less common symptoms include balance disturbances, swelling in face or throat tissues, skin irritations, and even respiratory problems and asthma. Some allergy sufferers experience symptoms all year. Others find certain seasons bring on attacks. Allergy symptom control is most successful when multiple management approaches are used simultaneously. Minimizing exposure to allergens, managing symptoms with medications, and desensitization with allergy shots are all methods that can be useful in controlling allergic symptoms. Medications properly used can be very helpful. Over the counter drugs can be beneficial, but some cause drowsiness. Sometimes prescription medications offer the best chance for good control. Immunotherapy, or allergy shots, provide the only treatment method that can offer lasting relief or cure from allergies. Before beginning a series of such shots, allergy testing must be performed. Beware of the Allergens Anything can be an allergen. Some substances, because of their chemical make-up, are more prone to generate an allergic response in humans. Pollens, food, mold, dust, feathers, animal dander, chemicals, drugs such as penicillin, and environmental pollutants commonly cause many to suffer allergic reactions.
Can Allergies Be Serious? |