UK Allergy Testing & Consultant-Led Allergy Care for Babies, Children & Adults
Remote urgent appointments available daily
UKallergy brings together leading NHS consultants from tertiary teaching hospital trusts to deliver comprehensive, evidence-based allergy and immunology care from our London clinics — with laboratory testing, video consultations and postal test kits available UK-wide, from Cornwall to the Scottish Highlands.
Every diagnosis and treatment plan is built on detailed clinical history, gold-standard diagnostics processed in accredited laboratories, and access to a wider multidisciplinary network spanning ENT, gastroenterology, endocrinology and neurology — so complex or overlapping conditions are never missed.
The Same Consultants Who Lead NHS Tertiary Allergy Services
Our consultant allergists and immunologists hold substantive NHS posts at leading tertiary teaching hospital trusts, where they manage the most complex referred cases in the country. In private practice with UKallergy, patients benefit from that same specialist decision-making, without an NHS waiting list.
This depth of experience matters most in complex or ambiguous presentations — distinguishing true IgE-mediated allergy from intolerance, unpicking multi-system reactions, or managing rare conditions such as hereditary angioedema and primary immunodeficiency.
Why This Matters for You
First UK Clinic Accredited as Both a
UCARE & ACARE Centre of Excellence
UKallergy’s London Allergy & Immunology Centre has held both accreditations since November 2017, making it the first clinic in the United Kingdom to achieve UCARE accreditation followed by ACARE accreditation.
UCARE is a global accreditation programme run by GA²LEN (the Global Allergy and Asthma European Network), recognising specialist centres providing the highest standard of care for chronic urticaria (hives) and angioedema.
To achieve UCARE status, a centre must satisfy 32 stringent criteria assessed during a formal independent audit, covering clinical protocols, diagnostic standards, patient monitoring tools, research activity and education. Certification is renewed every 2–4 years.
ACARE is the companion accreditation to UCARE, also operating under the GA²LEN framework, recognising centres of excellence in diagnosing and managing angioedema — sudden deep swelling of the skin, lips, throat and digestive tract that can be life-threatening when the airway is involved.
Angioedema has multiple causes — allergic, hereditary (HAE), acquired and drug-induced — and requires highly specialist investigation to distinguish between them. ACARE accreditation confirms our centre meets the highest international standards for this complex condition.
What This Means for You as a Patient
UKallergy London Allergy & Immunology Centre • First dual UCARE & ACARE accredited clinic in the UK • Accredited November 2017 by GA²LEN
A Multidisciplinary Network for When Allergy Overlaps With Other Conditions
Allergic and immunological symptoms rarely exist in isolation. Reflux can mimic food allergy, chronic hives can be confused with autoimmune or endocrine disease, and unexplained swelling or breathing difficulty may have a neurological or ENT cause. Where symptoms cross specialties, UKallergy can draw on a wider network of consultant colleagues to reach the right diagnosis first time, without multiple separate referrals.
ENT (Ear, Nose & Throat)
Chronic rhinosinusitis, nasal polyps, laryngeal symptoms and airway assessment relevant to severe allergic disease.
Gastroenterology
Eosinophilic oesophagitis, reflux, coeliac screening and complex gut symptoms that overlap with food allergy and intolerance.
Endocrinology
Thyroid and other hormonal contributors to chronic urticaria, and hormonal conditions that mimic or aggravate allergic symptoms.
Neurology
Assessment where neurological symptoms accompany or are mistaken for allergic or anaphylactic reactions.
Every Sample Processed in Accredited Laboratories
Whether your sample is taken in clinic or sent to us in the post, it is processed by accredited laboratories using validated, quality-controlled methods. This means your results are directly comparable to NHS and international standards, and can be relied upon to guide safe treatment decisions — including immunotherapy and biologic prescribing.
✓Quality-controlled sample handling
✓NHS-comparable reporting standards
✓Secure UK-wide postal logistics
From Hay Fever to Complex Anaphylaxis — Expert Care for the Full Spectrum of Allergy
Our multidisciplinary team manages the full spectrum of allergic and immunological conditions in babies, children and adults.
Food Allergy (Peanut, Milk, Egg, Tree Nuts)
Infant & Weaning-Related Allergy
Anaphylaxis
Asthma
Eczema / Atopic Dermatitis
Urticaria & Angioedema
Drug & Medication Allergy
Insect Venom Allergy
Contact Dermatitis
Oral Allergy Syndrome (Pollen-Food)
Lactose Intolerance
Gluten Sensitivity / Coeliac Screening
Chronic Spontaneous Urticaria
Occupational Allergy
Primary Immunodeficiency
Eosinophilic Oesophagitis (EoE)
Allergy Treatment Guided by the Latest Clinical Research
We follow current guidelines from the EAACI and BSACI, ensuring every patient receives the most up-to-date care available.
ALEX³ Molecular Allergy Testing — 300 Allergens, One Blood Sample
Standard IgE blood tests measure your immune response to whole food extracts. Our ALEX³ component-resolved diagnostic (CRD) panel identifies IgE antibodies to the specific proteins within each allergen — the individual molecules that determine whether your reaction is likely to be mild or severe.
For example, sensitisation to the peanut protein Ara h 2 is associated with a risk of systemic anaphylaxis, while sensitisation to Ara h 8 (a birch pollen cross-reactive protein) typically indicates oral allergy syndrome only. Without CRD, this crucial distinction is missed.
Every sample, whether taken in clinic on Harley Street or sent by post, is processed in an accredited laboratory, with results reviewed by your consultant via video.
What ALEX³ Identifies
Home Testing — Nationwide UK
Allergen Immunotherapy — The Only Treatment That Changes the Underlying Allergy
Allergen immunotherapy (AIT) is the only treatment shown to modify the underlying immune response in IgE-mediated allergy — not just suppress symptoms. By gradually retraining the immune system to tolerate a specific allergen, it can provide lasting relief and, in some cases, sustained unresponsiveness (remission).
Clinical evidence (BSACI BRIT Registry, 2025): Paediatric allergy services offering AIT are concentrated in urban centres, creating regional inequalities in access. Our nationwide postal testing kits and video consultations were designed precisely to bridge this gap for patients across the UK who cannot access specialist care locally.
Sublingual Immunotherapy (SLIT)
Daily drops or spray held under the tongue to desensitise to grass pollen, birch pollen, house dust mites, other tree pollens, moulds and animal dander. Safe and well tolerated, suitable for most age groups.
Oral Food Immunotherapy (OIT)
Gradual, supervised introduction of increasing doses of the allergenic food such as peanut, milk or egg to build tolerance. Delivered in structured phases according to current EAACI and GA2LEN recommendations.
From First Contact to Lasting Relief — Four Clear Steps
We believe a clear pathway reduces anxiety and improves outcomes. Here is what to expect when you come to UKallergy.
Register & Book Your Consultation
Create your patient account online in minutes, select the right specialist — allergy, immunology, dermatology, ENT, gastroenterology, endocrinology, neurology or paediatrics — and choose an in-person or video appointment. Same-day video appointments are available for urgent queries.
Comprehensive Allergy Assessment
Your consultant takes a detailed clinical history and recommends the most appropriate tests: skin prick tests, patch tests, specific IgE blood tests including the ALEX³ component-resolved panel, oral food challenges and genetic intolerance tests — all processed by accredited laboratories. All tests are painless.
Clear Diagnosis & Personalised Treatment Plan
Your consultant explains results in plain language, distinguishing between true IgE-mediated allergy, intolerance and cross-reactivity. A written treatment plan is provided, including avoidance strategies, medication options and referral into our immunotherapy programme — or to a colleague in ENT, gastroenterology, endocrinology or neurology — where appropriate.
Ongoing Care, Immunotherapy & Global Support
For patients undertaking immunotherapy, regular follow-up appointments monitor progress and adjust dosing. Travelling abroad? Our Global Allergy Network (GAN) ensures continuity — partner clinics worldwide can continue your treatment so your progress is never interrupted.
✓Accredited laboratory testing
✓ALEX³ molecular testing
✓Oral immunotherapy (OIT)
✓Babies, children & adults
✓Same-day video available
✓UK-wide postal kits
✓Global Allergy Network partner
Face-to-Face and UK-Wide Remote Care With NHS Consultants
Harley Street, South London, West London or secure same-day video with our specialists in allergy, immunology, ENT, gastroenterology, endocrinology, neurology and paediatrics — all consultants with substantive NHS tertiary hospital posts.
Advanced Allergy Testing Including Nationwide Postal Service
Skin prick tests, patch tests and over 600 specific IgE blood tests, including the ALEX³ panel of 300 allergens & molecular components in one blood sample. All samples processed by accredited laboratories, with kits sent anywhere in England, Scotland, Wales and Northern Ireland and results reviewed by your consultant via video — no clinic visit required.
Allergen Immunotherapy
Sublingual immunotherapy (SLIT) for pollen, dust mites, mould and pets, and oral food immunotherapy (OIT) for peanut, milk and egg allergy, aligned with current EAACI and BSACI guidelines.
Trusted by Our Patients
Read genuine accounts from adults, children, and parents of babies who found clarity, confidence and lasting relief through our care.
Rated Excellent based on verified patient feedback
“After years of uncertainty, my consultation was a revelation. The detailed clinical history and ALEX testing provided clear answers to my contact allergies and identified a separate undiagnosed condition. I finally have a clear path forward.”
Complex Diagnosis
“Finding a specialist for our son’s multiple food allergies was incredibly difficult. The calm, educational approach gave us the answers we desperately needed after years of heartache. We cannot recommend the team highly enough.”
Paediatric & Multiple Allergies
“I was unable to visit London so used the postal ALEX test. The results were thorough and my video consultation with the consultant was just as informative as a face-to-face visit. Brilliant service for people outside of London.”
Remote Testing & Video Consultation
Frequently Asked Questions
What is the difference between a food allergy and a food intolerance?
Do I need a GP referral to be seen at UKallergy?
Can babies and very young children be tested for allergies?
What is the ALEX³ allergy test and is it better than a standard blood test?
Is oral immunotherapy (OIT) safe for my child?
What happens if my symptoms are complex or involve more than one body system?
Will my health insurance cover allergy testing and treatment?
The Global Allergy Network (GAN) — Allergy Care Wherever You Are in the World
Allergy does not pause when you travel. Through our membership of the Global Allergy Network, your treatment — including ongoing allergen immunotherapy — can be continued at partner clinics worldwide.
Whether you are travelling for work, relocating abroad, or require an international second opinion, our GAN coordinators will arrange seamless continuity of your care, including the transfer of clinical records and treatment protocols.
GAN Benefits for Our Patients
Start Your Journey to Relief Today
Register as a new patient in minutes, choose your specialist and book your first consultation — in London or by video, wherever you are in the UK. Same-day appointments are often available for urgent cases.
📋 Register as a New Patient
020 3143 3449
Monday–Friday • Our friendly team will help you find the right specialist and earliest available appointment.
Our consultants hold substantive NHS posts at tertiary teaching hospital trusts and practise in accordance with BSACI, EAACI and AAAAI guidelines. All diagnostic tests are validated, processed by accredited laboratories, and scientifically proven. We do not endorse IgG, IgG4, kinesiology, Vega testing or other non-evidence-based allergy tests.
Content reviewed January 2026. For medical emergencies, call 999. If you are experiencing a severe allergic reaction, use your adrenaline auto-injector or adrenaline nasal spray and call 999 immediately.