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Dust mite allergy: tests and diagnosis, allergy skin test.

House dust mite allergiesYour doctor may make a conclusion on dust mite allergy which is based on examination of your nose, symptoms and your comments.

The doctor may look at the lining of your nose using the lighted instrument. It will show if you have an allergy to airborne particles – in this case the lining of your nasal passage may be pale or bluish and will be swollen.

Your doctor may also make a conclusion on dust mite allergy depending on your answers to some questions. For instance, if the symptoms worsen when you are about to go to bed or during cleaning the house – that’s exactly when house dust mite allergens are temporarily airborne – that’s a clear sign that you have allergy to dust mites.

Also, if you have pets, which are another usual source of allergies, it will probably be more complicated to reveal the cause of your allergy, especially if your pet usually sleeps in the same bedroom as you do. It will be easier to determine the true source of the allergy after you take some steps aimed at reducing the amounts of the potential allergens in your house.

Allergy skin test
Your doctor will probably suggest you to perform an allergy skin test in order to find out the exact cause of your allergy. You will be referred to an allergist (allergy specialist) for performing this test. There the smallest drops of some allergen extracts, including those for house dust mites, will be pricked onto the surface of your skin. The area of skin is usually a forearm, or sometimes the upper back. These drops will be left on the skin for fifteen minutes before observing it for symptoms of allergic reaction. So if you appear to be allergic to house dust mites, then you will get a red itchy bump on your skin right on the place the dust mite extract was pricked. The only side effect of such skin tests is redness and itching, but it usually goes away within half an hour.

Blood test
However, in certain cases a skin test cannot be performed because of some interactions with specific medications or because of the skin condition. In such case your doctor may suggest you to perform a blood test as an alternative. It will screen for certain allergy-causing antibodies for different common allergens, this including house dust mites. This blood test will also be able to reveal your sensitivity to an allergen.



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