An allergy is an exaggerated immune response or reaction to substances that are generally not harmful.
Allergies occurs when the immune system over-reacts to substances (allergens) that are usually harmless.
When a person with allergies breathes in an allergen, the body releases histamine and other chemicals as part of the immune response. This causes itching and swelling, mucus production, and in serious cases, hives and rashes, as well as other symptoms. Symptoms vary in severity from person to person.
Most environmental allergens contact the skin or eyes, or are inhaled. Therefore, most symptoms affect the skin, eyes, or the breathing passages.
An allergen is something that triggers an allergy. When a person with allergic rhinitis breathes in an allergen such as pollen or dust, the body releases chemicals, including histamine. This causes allergy symptoms such as itching, swelling, and mucus production.
Allergic rhinitis is a collection of symptoms, mostly in the nose and eyes, which occur when you breathe in something you are allergic to, such as dust, dander, or pollen.
SYMPTOMS:
* Coughing
* Difficulty breathing
* Hives
* Itching of the nose, eyes, throat, or skin
* Rash
* Redness in the eyes
* Runny nose
* Sinus pressure
* Sneezing
* Tearing eyes
* Wheezing
Allergy testing is done to see identify the specific allergens that are causing your symptoms. Skin testing is the most common and useful method.
Having allergies may also alter the results of the following tests:
-WBC count (eosinophil count)
- Blood lgE levels
The best treatment is to avoid being around molds, dander, dust.
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