Allergy Testing

Allergy Testing

Allergies occur when your immune system, which isyour body’s natural defense, overreacts to something in your environment. For example, pollen, which is normally harmless, can cause your body to overreact. This overreaction can lead to: a runny nose sneezing blocked sinuses itchy, watery eyes.

Types of allergens

Allergens are substances that can cause an allergic reaction. There are three primary types of allergens: Inhaled allergens affect the body when they come in contact with the lungs or membranes of the nostrils or throat. Pollen is the most common inhaled allergen. Ingested allergens are present in certain foods, such as peanuts, soy, and seafood.. Contact allergens must come in contact with your skin to produce a reaction. An example of a reaction from a contact allergen is the rash and itching caused by poison ivy. Allergy tests involve exposing you to a very small amount of a particular allergen and recording the reaction.

How allergy testing is performed

An allergy test may involve either a skin test or a blood test. You may have to go on an elimination diet if your doctor thinks you might have a food allergy. Skin tests Skin tests are used to identify numerous potential allergens. This includes airborne, food-related, and contact allergens. The three types of skin tests are scratch, intradermal, and patch tests. Blood tests If there’s a chance you’ll have a severe allergic reaction to a skin test, your doctor may call for a blood test. The blood is tested in a laboratory for the presence of antibodies that fight specific allergens.

The risks of allergy testing

Allergy tests may result in mild itching, redness, and swelling of the skin. Sometimes, small bumps called wheals appear on the skin. These symptoms often clear up within hours but may last for a few days. Mild topical steroid creams can alleviate these symptoms. On rare occasions, allergy tests produce an immediate, severe allergic reaction that requires medical attention. That’s why allergy tests should be conducted in an office that has adequate medications and equipment, including epinephrine to treat anaphylaxis, which is a potentially life-threatening acute allergic reaction.

Dr Kedarnath dewangan MBBS, MD pulmonologist from medical college, Indore, M.P. Total Experience 8Years.

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