Nutek Medical Centre

Medical Excellence through technology & expertise

Allergies Check

ALLERGIES CHECK:

 

              Allergies are very common. Most often they cause watery eyes and runny noses. We may sneeze or wheeze. Sometimes allergies cause asthma attacks and rarely they may result in life-threatening anaphylactic reactions. Allergies may also cause skin reactions and food allergies can also result in severe intestinal discomfort.


              There are a number of ways to determine which substances are causing the allergic attacks. The most common way, and probably the best way, is by carefully observing what you come into contact with when the allergic reaction takes place. Then, by avoiding contact with the allergen, you will tend to avoid the allergic attack. Unfortunately, because most allergic persons react with many substances and because some substances cannot be avoided, this approach does not always work. Food allergies are particularly difficult to track down.

 

                Another diagnostic approach is skin testing. This is be done either by scratching your skin with a needle and painting a dilute solution of the allergen onto the wound, or by injecting the dilute solution under the skin. If you are allergic to the substance, a raised, red, and often itchy rash will form in the area of the application.

Different tests performed for allergies check are:


  • IgE Skin Tests
  • Skin Prick Test


 

There are three common methods of allergy skin testing.


The skin prick test involves:

  • Placing a small amount of substances that may be causing your symptoms on the skin, most often on the forearm, upper arm, or back.
  • Then, the skin is pricked so the allergen goes under the skin's surface.
  • The health care provider closely watches the skin for swelling and redness or other signs of a reaction. Results are usually seen within 15-20 minutes.
  • Several allergens can be tested at the same time.


The intradermal skin test involves:

  • Injecting a small amount of allergen into the skin. 
  • Then the health care provider watches for a reaction at the site.
  • This test is more likely to be used to find out if you are allergic to something specific, such as bee venom or penicillin.

Patch testing is a method to diagnose the cause of skin reactions that occur after the substance touches the skin.

  • Possible allergens are taped to the skin for 48 hours.
  • The health care provider will look at the area in 72 - 96 hours.