Understanding allergy tests
Allergy testing is a simple and efficient method to detect allergens by assessing IgE (Immunoglobulin E) levels in the blood. It is made in the immune system in response to allergies such as pollen, dust mites, pet fur, or certain foods.
Using a blood sample, we can identify the substances triggering your reactions. Unlike skin prick tests, which expose your skin to allergens, blood tests are non-invasive and can be carried out even if you are currently taking antihistamines.

Is an allergy blood test good?
In the UK, allergies affect an estimated 30% of adults and 40% of children, with millions undergoing allergy testing annually. If any of the following symptoms sound familiar, an allergy blood test may be suitable for you:
- Wheezing or difficulty breathing
- Digestive issues following certain foods
- Unexplained skin rashes or hives
- Persistent sneezing or a runny nose
- Itchy or watery eyes
If allergies are interfering with your daily life, an allergy blood test can provide valuable insights into the root cause of your symptoms.
Allergy blood tests are also helpful for individuals managing conditions like eczema or asthma or those who suspect a food or environmental allergy is at play.
Ailment associated with allergies
Allergic reactions can sometimes be linked to or exacerbate other health conditions. These include:
- Food intolerances: Trigger digestive discomfort, even if not classified as a true allergy.
- Sinusitis: Chronic sinus issues may sometimes be linked to allergies.
- Anaphylaxis: A severe and potentially life-threatening allergic reaction that requires immediate medical intervention.
- Asthma: Allergic responses can lead to or worsen asthma symptoms.
- Hay fever: Often caused by exposure to pollen, dust, or mould spores.
- Eczema: Many cases are tied to allergens in food or the environment.

Benefits of allergy blood testing
- Safe for all ages: Suitable for children, adults, and individuals unable to undergo skin testing.
- Highly accurate: Reliable results for identifying both mild and severe allergies.
- Quick results: A small blood sample is taken, and results are typically available within days.
- Convenient: No need to discontinue medications such as antihistamines before the test.
- Non-Invasive: A simple blood sample is all that’s required.
Get in touch with us!
If you think you might be allergic or have allergy symptoms, kindly reach out to us for an allergy blood test at Private Blood Tests London.
Relevant Tests
How Private Blood Tests London Works

Order your test
Select the test that you would like to undergo

Provide your sample
Go to the Harley Street clinic for your blood draw and pay for your test in person

View your results
As soon as the results are ready, the will be sent to you by your chosen method

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Advice from expert UK doctors
