Allergy Consultation
£250
- Dr Scott Pereira, Consultant Immunologist
- History and examination
- Advice on the right test for your child
CONSULTANT IMMUNOLOGIST · HARLEY STREET
Allergy Testing for Children in London
Allergy testing for children with a Consultant Immunologist at 117a Harley Street, London, from £250. Dr Scott Pereira sees children with a parent or legal guardian and advises which allergy test suits your child's age and symptom history.
ResultsIn clinic to 5 days
Time30-60 Mins
PriceFrom £250
AvailabilityTuesdays
Est. 1984
Trusted clinical caresince 1984
UKAS-accredited labsGP & consultant pathways
As Featured In
Private allergy testing for children in London
Dr Scott Pereira, Consultant Immunologist, sees children at Medical Express Clinic alongside a parent or legal guardian.
He advises whether in-clinic skin prick testing, the dedicated Children's Panel (£376.25) or the ALEX3 blood test is the most suitable approach for your child's age and symptom history.
An allergy consultation costs £250, skin prick testing costs £450 including the consultation, and ALEX3 costs £413.75.
Consultations and skin prick clinics run on Tuesdays from 14:00 to 17:30 at 117a Harley Street, London.
You can book online or by calling 0207 499 1991.
How much does a child allergy test cost in London?
A children's allergy consultation with Dr Scott Pereira costs £250 at Medical Express Clinic. Skin prick testing costs £450 including the consultation, the Children's Panel blood test costs £376.25 and ALEX3 costs £413.75.
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Skin Prick Testing
£450
- Includes the consultation
- Up to eight allergens
- Results in 15 to 20 minutes
ALEX3 Allergy Test
£413.75
- 290+ allergens from one blood sample
- No antihistamine pause
- Report in about five working days
How allergy testing for children works
Dr Pereira sees children alongside a parent or legal guardian. His clinical practice covers adult and paediatric food allergies, allergic rhinitis, chronic urticaria and insect sting allergies.
He maps your child's symptom history first, then advises whether in-clinic skin prick testing, the dedicated Children's Panel (£376.25) or ALEX3 is the most suitable approach for your child's age and symptoms.
The three tests
- skin prick allergy test: drops of allergen extract on the forearm, read in 15 to 20 minutes (£450, including the consultation)
- Children's Panel: a targeted IgE blood panel taken during the consultation (£376.25), with results typically back in two to five working days
- ALEX allergy test: 290+ allergens from one blood sample (£413.75), with results typically in five working days
Food allergy testing for children
Immediate reactions after eating, such as hives, lip or eyelid swelling, wheezing or vomiting triggered by nuts, shellfish, fish, milk, egg, wheat or stone fruit, are investigated with skin prick testing, ALEX3 or a targeted food panel.
A raised skin prick or blood IgE result shows sensitisation rather than a confirmed clinical allergy. Dr Pereira interprets every positive finding against your actual symptoms and reaction history before recommending avoidance or treatment.
Preparing your child for the appointment
If your child is having skin prick testing, stop all antihistamines three days (72 hours) beforehand so they do not suppress the skin reaction. Blood tests are not affected by antihistamines, so a blood test is the better choice if your child cannot pause them.
What to bring
- A list of your child's current medicines, inhalers and nasal sprays
- Copies of any previous NHS or private allergy test results
- Photographs on your phone of any rash, hives or swelling during a flare-up
- A small sample of a suspected food or substance if your child is having skin prick testing
Book allergy testing for your child
Book the £250 allergy consultation online or call 0207 499 1991. Clinics with Dr Pereira run on Tuesdays from 14:00 to 17:30 at 117a Harley Street, London. The full list of tests and blood panels is on our private allergy testing in London page.
Clinical lead
Dr Scott Pereira MA, MB, B Chir, PhD, FRCPath
Immunology & Allergy • GMC 1524080
“Dr Pereira is a consultant immunologist with over 30 years of experience in complex allergy diagnosis, allergic rhinitis, urticaria and allergen desensitisation (immunotherapy).”
Verified Patient Feedback
What our patients say
“Results faster than expected at a walk-in clinic”
“I recently had a blood test for rabbit allergies at Medical Express Clinic, and I'm extremely pleased with the service. Not only did I receive my results faster than expected, but the receptionist was fabulous, she answered all my questions and accommodated all my requests. It's the only walk-in clinic I found in central London with reasonable prices. Highly recommend this clinic!”
Alessandro P.Walk-In Allergy & Blood Test
Trustpilot Review“Heard, understood and reassured”
“The clinic is warm and welcoming. In my experience, every time I was there, I found myself heard and understood. My health issues have been tackled in the best of ways. Miss Arjeta is absolutely a master of blood tests, you will not feel anything. Dr Bakhtiar is knowledgeable and calm, I always feel reassured after speaking to him. I genuinely recommend this clinic.”
Verified Patient · Jan 2026Private GP & Blood Testing
Google Review“Best medical practice I've been to globally”
“By far the best medical service I have received. Exceptionally fast, extremely knowledgeable doctor and the best medical practice I’ve been to globally.”
Dom R. · Sept 2026Private GP & Health Screening
Google ReviewFAQs
Children's allergy testing FAQs
Is allergy testing suitable for children?
Yes, Dr Pereira sees children accompanied by a parent or legal guardian and advises whether skin prick testing, the dedicated Children's Panel (£376.25) or ALEX3 is the best fit for your child.
How much does a private child allergy test cost?
An allergy consultation with Dr Pereira costs £250. Skin prick testing costs £450 including the consultation, the Children's Panel costs £376.25 and ALEX3 costs £413.75.
Does my child need to stop antihistamines before the test?
Stop all antihistamines three days (72 hours) before skin prick testing so they do not mask the skin response. ALEX3 and targeted blood panels do not require stopping antihistamines.
How quickly will we get the results?
Skin prick test results are read and discussed during the appointment, usually within 15 to 20 minutes. ALEX3 blood results typically take five working days, and targeted IgE blood panels typically take two to five working days.
When can my child be seen?
Dr Pereira's allergy consultations and skin prick clinics run on Tuesdays from 14:00, with the last bookable window ending at 17:30.
