WHAT CAUSES ALLERGIES?

An allergy is caused by an oversensitive immune system, which leads to a misdirected immune response. The immune system normally protects the body against harmful substances, such as bacteria and viruses. When an allergic reaction occurs, it is a result of the immune system reacting to substances (allergens) that are generally harmless and in most people do not cause an immune response.
In a person with allergies, the first exposure to the allergen triggers the immune system to recognize the substance. Any exposure after that will usually result in symptoms. When an allergen enters the body of a person with a sensitized immune system, histamine and other chemicals are released by certain cells. This causes itching, swelling, mucus production, muscle spasms, hives, rashes, and other symptoms. These can vary in severity from person to person. Most people have symptoms that cause discomfort without being life-threatening. A few people have life-threatening reactions (called anaphylaxis).

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CAN ALLERGIES DEVELOP INTO ASTHMA?

Yes. Studies have shown that children who suffer from hay fever and/or eczema are more likely to develop asthma. Allergic rhinitis, eczema and asthma are part of the same condition that can co-exist in up to 80% of patients. This means that by treating the cause of your allergies, you may prevent the progression of allergies and reduce the risk of asthma attacks.