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Allergy Testing

Skin Allergy Testing & Skin Prick Test in London

Allergy Basics MOT Package


Allergy Advance MOT Package



At the Medical Express Clinic, we offer private allergy testing for children, babies and adults. Medical Express uses the widely used, robust and scientifically accepted Skin Prick Test (SPT) method in the UK for diagnosing environmental, inhalant and food allergies.

We use Skin Prick Test solutions (allergens) to perform the tests. We have a wide range of common allergens and can also perform Prick to Prick skin tests by taking samples from the foods that you might be allergic to you. Please being the sample to be tested with you.

Allergies affect nearly 1 in 4 of the UK population at any time. Every year, the total number of people affected by symptoms of allergy is increasing by over 5%.

Common symptoms of Allergy include the following:

  • Asthma
  • Eczema
  • Rhinitis
  • Migraines
  • Itchy eyes, ears, throat, mouth or lips
  • Runny nose
  • Sickness, vomiting or diarrhea
  • Sinus pain
  • Rash/Hives (Urticaria)
  • Swelling
  • Wheezing
  • Hyperactivity

An allergy is a response within the body to a substance (allergen) from its surroundings. This might be due to something that you eat, touch or inhale.

Any substance can cause allergies and it is quite difficult for the individuals to detect what the root cause of the problem is. If you or your child are suffering from a suspected allergy, visit the private allergy clinic in London and get the allergy diagnosed and confirmed.

The skin prick test will let you know if and what you are allergic to, help avoid the allergens and promote a better quality of life. It is a safe test and can be done in children and adults. It is not painful as a small metal pricker just scratches the upper layer of the skin with a drop of allergen.

If you are suspecting severe allergy, skin testing is a suitable way to let the GP know the root cause behind it. Some extracts of common allergens like pollen, mold, dust mites, animal dander, and foods are used for performing these tests. Once they enter into the skin, they may trigger rash and make you feel irritated.

The kind of test you need to perform will depend on your symptoms and the practitioner will be able to tell you which test to perform.

Some Possible Allergy Testing at Our Clinic:

Skin Prick Test

A skin prick test l allergens of a patient. It is safe, quick, has minimal pain and the effective results are known after twenty minutes. Little drops of allergen extract that are prepared in the laboratory are applied on your skin and punctured lightly by a shallow lancet. We perform this skin prick allergy testing within our CQC registered clinic on Harley Street an affordable cost in Central London.

If there are IgE antibodies, a wheal or welt having a diameter of 5 to 15 mm will appear. The wheals will disappear within 30 minutes to an hour. There is a nominal chance that the patient might a develop strong reaction, however patients are monitored closely and appropriate treatment is always provided at the point of reaction.


At Medical Express Clinic we do 10 tests - a positive control, negative control and 8 selected antigens as the primary skin prick testing protocol. The initial testing costs £150, with room to add up to 5 more antigens for £10 per antigen.

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ISAC Test – Screening for 112 Allergens in just one blood sample

About the ISAC test

ISAC test is a blood test that uses microchip technology to detect specific IgE antibodies, commonly known as an allergy, to food and airborne allergens. It enables concurrent measurement of antibodies to various allergen components in a test with a few µl of plasma or serum only. The pre-selected allergens consist of the most relevant cross-reactive markers.

Please find our dedicated page on the ISAC test for more information.

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Provocation Tests

If there are differences between the results of medical history and allergy tests, you may need to go for a provocation test. The supposed allergen is provided to the patient under monitored condition carefully. Depending on the allergen and various symptoms it can cause, you might breathe in the allergen in small yet increasing doses and place it on the lower lip or inside the mouth, be applied to conjunctiva or sniffed in the nose. Some examples of this situation where this kind of testing is required will help you to know if a child has surpassed peanut allergy or if an antibiotic can be taken safely when different tests have not been clear.

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What you can expect from allergy consultation

Your first visit to the Medical Express Clinic in Harley Street, allergy test for your child or babies will involve a thorough evaluation of your allergy and medical history, you will need to fill out an allergy questionnaire. We can then tell you about other possible causes for the allergy. You may have to perform a special blood test known as a RAST/ImmunoCap. This might help you to detect allergens that include – dust mites, cats, dogs, pollens, milk, eggs, latex, peanuts etc. You will be able to get the results of the test within 48-72 hours.

It is essential that for 3 days prior to your consultation with our doctor, you should stop taking any antihistamine medication; such as Piriton, Benadryl and Sudafed. If possible, try to bring in the list of presumed allergens for checking.
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