Allergy Clinic Appointments & Test Ordering

Specialist Consultations

• World-class multilingual allergy specialists
• In-person, video, or telephone consultations
• Adults and children of all ages
• Same-day urgent video appointments often available
• Second opinions and complex case reviews

Allergy Testing

• Skin prick tests (results in 20 minutes)
• ALEX³ molecular allergy test (300 allergens)
• Specific IgE blood tests (600+ allergens)
• ISAC molecular profiling
• Supervised food and drug challenge tests

Treatment & Management

• Allergen immunotherapy (SCIT, SLIT, VIT)
• Peanut oral immunotherapy (Palforzia®)
• Omalizumab, dupilumab & biologic therapies
• Anaphylaxis emergency plans & auto-injector training
• EURneffy® (needle-free adrenaline) prescription

At-Home & Online Testing

• ALEX³ postal test — UK-wide delivery
• Simple finger-prick or venous collection
• Results reviewed by a consultant allergist
• Results via secure Carebit patient portal
• Video follow-up to discuss findings

Schools, Work & Travel

• Personalised written emergency action plans
• School allergy management letters
• Auto-injector training for patients and carers
• Pre-travel allergy risk assessment
• Fitness-to-fly and airline allergy documentation

Food Allergy

• Peanut allergy (incl. Palforzia® OIT)
• Tree nut allergy (all types)
• Milk and egg allergy
• Wheat, soya, sesame allergy
• Fish and shellfish allergy
• Multiple food allergy

Airborne & Environmental

• Hay fever (seasonal allergic rhinitis)
• Perennial rhinitis (dust mite, pet, mould)
• Allergic asthma
• Cat, dog, horse allergy
• House dust mite allergy
• Mould and fungal allergy

Skin & Systemic

• Chronic urticaria (hives)
• Angioedema (all types)
• Hereditary angioedema (HAE)
• Atopic eczema / dermatitis
• Allergic contact dermatitis
• Anaphylaxis investigation

Drug & Venom Allergy

• Wasp & bee sting allergy (VIT)
• Penicillin & antibiotic allergy
• NSAID & aspirin hypersensitivity
• Anaesthetic allergy assessment
• Vaccine allergy & graded challenge
• Drug de-labelling service

ENT & Respiratory

• Rhinosinusitis and nasal polyps
• AERD / Samter’s Triad
• Non-allergic rhinitis
• Difficult / severe asthma
• FeNO and spirometry

Immunology

• Recurrent infections
• Primary immunodeficiency screening
• Hypogammaglobulinaemia
• Mastocytosis & elevated tryptase
• Autoimmune conditions

New Patient Consultation

A comprehensive first consultation with an allergy consultant. Full clinical history, physical examination, and allergy testing (skin prick tests can be performed at the same visit). A diagnosis and personalised management plan are provided, with a detailed clinic letter sent to you and your GP.

Approximately 45–90 minutes. No GP referral required for self-pay patients.

Book a new patient appointment →

Follow-Up & Review Appointment

For existing patients returning to review results, reassess treatment, check auto-injector technique and expiry, or adjust management plans. May be in-clinic or via video.

Approximately 20–30 minutes.

Book follow-up →

Paediatric Allergy Appointment

Specialist paediatric allergy consultants for children of all ages, from babies and toddlers through to adolescents. Skin prick testing, food allergy investigation, asthma assessment, and eczema management. Paediatric-to-adult transition planning from age 16–18.

Book paediatric appointment →

Second Opinion

For patients who have received an allergy diagnosis elsewhere and wish to verify it, or for complex or unclear cases where previous management has been unsatisfactory. A full independent assessment is provided including review of prior test results.

Book a second opinion →

Immunotherapy Appointments

Dedicated appointments for patients undergoing allergen immunotherapy (hay fever SCIT/SLIT, venom immunotherapy, or peanut OIT). Includes pre-injection health check, injection administration, and 30-minute post-injection observation. Resuscitation facilities on site at all times.

Enquire about immunotherapy →

Transferring Patients from Abroad

We welcome patients relocating to the UK from the US, Europe, Australia, New Zealand, and elsewhere who are in the middle of an immunotherapy programme. Subject to vaccine availability and liaison with your originating physician. Bring all documentation from your current programme.

Call to discuss transfer →

ALEX³ Molecular Allergy Test →

300 allergens and molecular components from one blood sample. Distinguishes true allergy from cross-reactivity. Available in-clinic or by at-home postal kit. The most comprehensive allergy blood test available in the UK.

ISAC Molecular Allergy Test →

112 molecular components on a biochip platform. Particularly useful for polysensitised patients and for identifying cross-reactive carbohydrate determinants (CCDs) that may produce false-positive results on standard panels.

Skin Prick Testing →

Fast, safe, and highly sensitive first-line allergy test. Results within 20 minutes. Safe from birth. Used for foods, pollens, pets, dust mite, moulds, drugs, venoms, and latex. Antihistamines must be stopped 3–7 days beforehand.

Specific IgE Blood Tests (RAST) →

Quantitative measurement of allergen-specific IgE for 600+ individual allergens on the ImmunoCAP platform. Does not require stopping antihistamines. Suitable when skin testing is not possible (severe eczema, dermographism).

Supervised Food & Drug Challenge Tests →

Gold standard for confirming or excluding food or drug allergy. Conducted under close medical supervision with full resuscitation facilities. Used for diagnosis, threshold assessment, and drug de-labelling.

Patch Testing →

Gold standard for allergic contact dermatitis. Panels of contact allergens applied to the back for 48 hours. Interpreted by dermatology consultants. Particularly useful for occupational skin allergy and cosmetic allergy.

Urticaria Histamine Release Test →

Identifies autoimmune chronic spontaneous urticaria (CSU) and guides omalizumab therapy decisions. Measures histamine released from donor basophils by patient serum.

Gluten & Lactose Intolerance Testing →

Coeliac serology (IgA tTG, IgA EMA), HLA-DQ2/DQ8 genotyping, and hydrogen breath test for lactose intolerance. Referral for small bowel biopsy where indicated.

Register as a new patient

Register online at allergycentrelondon.co.uk. This takes just a few minutes and allows you to book, manage appointments, and access results through the secure Carebit patient portal.

Book your appointment or order your test

Book online via allergycentrelondon.co.uk, or call our appointment lines. Consultants are typically available within one week. Same-day urgent video consultations can often be arranged — call 020 3143 3449. For at-home tests, order online at foodallergytest.co.uk.

Prepare for your appointment

Read the preparation instructions in the section below. The most important step is stopping antihistamines 3 days before your appointment if skin prick testing is planned. Bring any relevant information: reaction photos, previous test results, medications list, and food samples if applicable.

Your consultation & tests

Your consultant will take a full clinical history, examine you where appropriate, perform or arrange allergy tests, discuss results, and produce a personalised management plan including written emergency plans, prescriptions, and a detailed letter to you and your GP.

Ongoing care & follow-up

We provide long-term ongoing care — regular reviews, immunotherapy monitoring, emergency plan updates, annual auto-injector checks, and treatment adjustments. All results and correspondence are available through your secure patient portal.

Bring with You

• A full list of all current medications (include doses)
• Any previous allergy test results
• Your GP referral letter (if using private health insurance)
• Photos of previous reactions if available (rash, swelling)
• A food diary if food allergy is suspected

Fresh Food Samples — When to Bring

• Fruits and vegetables: if you suspect allergy to a specific fruit or vegetable, bring a fresh sample — prick-prick testing (fresh food to skin) is more sensitive than commercial extracts for some plant foods
• Unusual fish or shellfish: if you suspect reaction to a specific type, bring a fresh or frozen sample in a sealed container
• Label any food samples with your full name

Urine Sample

Please bring a urine sample in a clean, sealed container labelled with your full name. This may be used for urinalysis where relevant to your clinical assessment. Your consultant will confirm whether this is needed at the time of booking.

Do Not Change

• Do not stop asthma inhalers, oral steroids, or any other prescribed medication without first speaking to the consultant or your GP
• Do not fast before a blood test — no fasting is required
• If you have had an allergic reaction in the 24 hours before your appointment, please call us in advance

Harley Street

London W1 — Our Flagship Clinic

Full allergy and immunology service including all consultation types, skin prick testing, blood tests, spirometry, supervised food/drug challenges, and immunotherapy administration. Easy access by tube (Regent’s Park, Great Portland Street, Bond Street).

Directions & details →

City of London

London EC — Convenient for City Workers

Adult allergy and immunology consultations, allergy testing, results review, and emergency plan consultations. Easy access from Liverpool Street, Bank, and City Thameslink stations.

Directions & details →

East London

London E — Serving East London Families

Allergy and paediatric allergy consultations, allergy testing, and skin prick testing for families in East London and beyond.

Directions & details →

UK Telemedicine

Nationwide — England, Scotland, Wales & Northern Ireland

Secure video appointments for consultations, results reviews, follow-ups, and initial assessments where local testing can be arranged via our at-home postal testing pathway. Same-day slots often available.

Book telemedicine →

Self-Pay Patients

Self-pay patients do not need a GP referral. You can book and register directly online. Consultation and test fees are payable directly. Please contact us for current fee information.

Register and book now →

Private Health Insurance

We accept most major UK private health insurance plans. Your insurer will usually require a GP referral letter before authorising cover for your allergy consultation — please check your policy and obtain a referral before booking. Contact us to confirm we accept your specific plan before your appointment.

Insurance & GP referral information →

GP Referrals

While not required for self-pay patients, a GP referral letter provides important background and is usually needed by insurers. If your GP is reluctant to refer, you can self-refer privately without a letter — please mention this when booking. We will always write back to your GP with a full consultation letter.

More about GP referrals →

How quickly can I get an appointment?

Consultant appointments are typically available within one week. For urgent concerns, we will do our best to offer a same-day or next-day video consultation — register online first then call 020 3143 3449. In a medical emergency, always call 999 rather than waiting for an appointment.

Can I bring my child to a standard adult allergy appointment?

We have dedicated paediatric allergy consultants for children. Please book specifically under “Paediatrics” (020 314 33446) so your child is seen by a specialist with paediatric training. Children of all ages are seen, from babies and toddlers through to adolescents. Our paediatric consultants liaise closely with local hospitals and schools.

I forgot to stop my antihistamines. Can I still have skin testing?

No — skin prick testing performed within 3–7 days of taking antihistamines will produce falsely negative results and the test will be uninformative. Please call us before your appointment so we can advise whether to proceed with a blood test instead, or rearrange your appointment for when antihistamines have been stopped for the appropriate length of time. Do not stop your antihistamines without speaking to us first if you are managing active severe symptoms.

Can I have an at-home allergy test without seeing a consultant?

The at-home ALEX³ test can be ordered and completed at home after completing a medical questionnaire. However, all results are reviewed by a consultant allergist — never by algorithm alone. A results consultation is included and strongly recommended to ensure your results are correctly interpreted and acted upon. Consultations and prescriptions are subject to a separate fee.

Do you offer appointments in languages other than English?

Yes. Our clinic offers a multilingual allergy service. Consultations are available in English, Russian, Arabic, and German, among other languages depending on consultant availability. Please mention your language preference when booking.

I am currently undergoing immunotherapy abroad. Can you continue my treatment?

In many cases, yes. We welcome patients who have started allergen immunotherapy or venom immunotherapy in the US, Europe, Australia, or elsewhere and are relocating to the UK. We will need to review your documentation and contact your originating physician to confirm vaccine availability in the UK. Please call 020 3143 3449 to discuss your specific situation before booking.