The 6 Best Allergists in London

London Nose & Sinus Clinic Medical is a leading centre for allergy care, located in the heart of London’s premier medical district on Weymouth Street. The clinic welcomes both private and international patients, providing specialist-led, patient-first care for adults of all ages.

Under the leadership of Dr Harsha Kariyawasam, the clinic combines expertise in medical rhinology, allergy, and respiratory medicine. His extensive experience as the lead of the Difficult Nose and Sinus service at the Royal National ENT Hospital ensures patients have access to top-tier allergy care.

The clinic offers cutting-edge diagnostic and treatment services, including allergen testing and tailored treatment plans. Their STOP Hayfever Clinic provides a comprehensive one-hour assessment with skin prick testing for a broad range of airborne allergens, including dust mites and pet allergens.

London Nose & Sinus Clinic Medical takes a multidisciplinary team approach. Dr Kariyawasam is one of the few physicians in the UK quadruple trained in Medical ENT, Allergy, and Respiratory Medicine and General Medicine enabling him to address all aspects of airway disease and collaborate seamlessly with ENT and respiratory colleagues to deliver integrated, precision-based care that improves patient outcomes. 

This ensures precise diagnoses and personalised treatment, particularly for complex or persistent allergic conditions.

Patients benefit from state-of-the-art testing facilities. A dedicated Airway Function Unit measures nasal airflow, smell function, lung function, and airway inflammation. 

These detailed assessments allow for nasal airflow, smell function, lung function, and airway inflammation. These detailed assessments allow for accurate identification of allergic triggers and informed decisions regarding treatment effectiveness.

The clinic is praised for its friendly, welcoming atmosphere and thorough patient care. Reviews highlight the clear explanations of conditions and treatments, leaving patients confident and well-informed about their allergy management.

Overall, London Nose & Sinus Clinic Medical excels in providing comprehensive, innovative, and patient-focused allergy care. The combination of clinical expertise, advanced diagnostics, and personalised treatment plans makes it a top choice for anyone seeking specialised allergy services in London.

The London Allergy and Immunology Centre offers consultant-led allergy and immunology care for babies, children, and adults, with both in-person consultations and remote appointments. Its allergist service covers common conditions such as hay fever, food allergy, asthma, eczema, urticaria and angioedema, as well as more complex conditions including anaphylaxis, drug allergy, primary immunodeficiency and eosinophilic oesophagitis.

A key advantage is the specialist-led approach, with consultant allergists and immunologists who hold substantive NHS posts at tertiary teaching hospital trusts. The service is designed to handle complex or ambiguous cases, including distinguishing true IgE-mediated allergy from intolerance and assessing symptoms that may involve several body systems.

The centre also offers a broad range of diagnostic options, including skin prick tests, patch tests, specific IgE blood tests, oral food challenges and genetic intolerance tests. Its ALEX³ component-resolved diagnostic panel tests 300 allergens and molecular components from one blood sample, while samples are processed by accredited laboratories and results are reviewed by a consultant. Patients can also access allergy testing through foodallergytest.co.uk.

Accessibility is another notable feature of the allergist service, particularly for patients outside London. Postal testing kits are available throughout England, Scotland, Wales and Northern Ireland, and consultations can be conducted by video, including same-day video appointments for urgent queries.

Treatment can extend beyond diagnosis and symptom management into allergen immunotherapy. The centre provides sublingual immunotherapy for selected environmental allergens and oral food immunotherapy for peanut, milk and egg allergy, with treatment pathways described as aligned with current EAACI and BSACI guidance.

For patients with conditions that overlap with other specialties, the centre can draw on a wider consultant network covering ENT, gastroenterology, endocrinology and neurology. Its UCARE and ACARE accreditations also specifically support its services for chronic urticaria and angioedema, including specialist investigation, monitoring and access to relevant treatments.

The service may therefore suit patients seeking consultant-led assessment across a wide range of allergic conditions, particularly those with complex symptoms, multiple affected systems, or a need for remote care. Its combination of specialist consultations, advanced testing, laboratory processing, personalised treatment planning and ongoing immunotherapy support provides a structured pathway from initial assessment through longer-term care.

Led by two clinical experts in the fields of paediatric and adult allergy, Allergy London prides delivers quality care to allergy sufferers. Their practice specialises in both paediatric and adult allergies, so it’s safe to say they could easily be your family’s on-call allergists.

They’re easily accessible to clients needing immediate care as they have five locations throughout the city. That’s why their availability isn’t a problem for the majority of their patients, as what’s reflected in the reviews.

Now, the allergy conditions they treat are pretty much the same ones that allergists treat on a regular basis: asthma, eczema, hay fever, and food allergies. What drew us in was the extensive allergy testing they provide.

Speaking of which, we discovered that they utilise a range of modern allergy testing techniques. Clients can expect to get tested through skin prick tests, molecular diagnostics, blood tests, breathing tests, and oral provocation testing.

Most of their clients also attested to the overall smoothness of the process they provide, from consultation to treatment of such diagnostics. In fact, they emphasise the quick results their allergists provide, as in many cases, they can diagnose in a single consultation.

Unfortunately, for insurance purposes, Allergy London doesn’t accept patients without a referral from a general practitioner or another consultant. They can, however, entertain self-paying patients, but they must go through an extensive consultation process.

The Surrey Allergy Clinic by Dr. Adrian Morris has been testing, diagnosing, and treating a broad spectrum of allergies for over 20 years. Throughout these years, he has earned the trust of his patients, especially those who have had him as their general allergist for years.

Before we get to how things work in the clinic, let’s quickly brief you on his overwhelming credentials. For instance, he has postgraduate diplomas in allergy, dermatology, family practice, and paediatrics, which explains why most of his patients are children.

He is also involved with several well-known UK allergy charities, the majority of which provide financial assistance to children and adults suffering from allergies. These all just give us an impression of how he really has his heart in his profession.

On another note, they have received mixed reviews for their services, with the majority of them centred on the initial consultation. Clients appreciate how this stage is jam-packed with services, such as basic allergy diagnostic tests and the creation of a comprehensive allergy profile.

However, some of them complain that the process is severely overpriced, not to mention the roughly similar fees for their follow-ups. They do, however, offer a less expensive online consultation that does not include allergy testing, which is still quite unsatisfactory.

Lastly, we recommend that you visit their site before making an appointment as they’ve listed insurance that doesn’t cover the consultation fee, just to keep you posted. Anyway, their expertise still exceeded our expectations, so they remain significant in this regard.

Dr. David Orton of London Allergy Doctors specialises in diagnosing and treating major types of allergies. But as he is a dermatologist consultant as well, he always finds himself accommodating patients with skin allergies.

Specifically speaking, he treats all classifications of eczema –  from the most commonly seen type (atopic eczema) to unclassifiable eczema. He uses the most common test, skin prick testing, to determine what type of allergy his clients have.

We learned from the reviews that he can be very accommodating in catering to an existing allergy diagnosis and treatment. This earned points from us as we believe quality like this significantly reflects their expertise.

Being Dr. Orton’s patient can also receive access to a private clinic as he also works in a couple of promising hospitals in the city. He is a consultant allergist at OneWelbeck Skin Health and Allergy and BMI Chiltern Hospital.

Booking an appointment with them, as we’ve heard, is easy as they have a booking form on their website. However, walk-in patients have complained about his secretarial team’s attitude toward them, which is, to be honest, a turn-off.

Fortunately, there is some good news when it comes to their rates, as we find their services to be reasonably priced. Plus, Dr. Orton is recognized by all the main private healthcare insurance companies, which is even more helpful to financially-troubled patients.

Thousands of patients from across the city (and beyond) have visited the London Allergy Clinic for allergy treatment. Given that they have over 40 years of experience, we’re not surprised by this solid track record at all.

The clinic employs six consultant allergists, all of whom have outstanding professional reputations. However, although we expected them to be operational every day based on their number, the clinic is only open on weekdays.

But availability isn’t much of an issue since clients can reach out to them via telephone consultations even outside business hours, given it is an emergency. Other than that, an appointment booking is required to get an initial consultation with them.

In terms of what the clinic can do, patients can expect diagnostic tests and treatment for a variety of allergy conditions. Treatments include desensitisation, symptomatic medication, Anti-IgE therapy, and many more.

They also offer emergency adrenaline pens to patients who are at risk of life-threatening anaphylaxis, which is a wonderful plus among their services. This is also why we consider this treatment to be their competitive advantage.

The only red flag we noticed was their lack of information about their pricing structure, though we’re relieved to hear that there hasn’t been any overpricing. There were also some reported admin errors, but otherwise, their overall service was fine.

Most of Dr. Harsha Kariyawasam’s patients are kids and adults with allergic rhinitis. He is well reputable for treating such types of allergies as he is primarily a consultant in allergy and medical rhinology.

However, he can also handle other sorts of allergies as he’s a general allergist. This alone impressed us, but learning about all of his credentials (clinical and academic training, awards) justifies including them in this list.

Another thing we like about him is his availability – Dr. Kariyawasam currently has four practice locations spread throughout London. This is also how we know he can offer his patients accessible facilities equipped with the right technology.

Many of his long-term allergy patients stayed with him for years because of his simple yet effective treatments. On top of it all is the quality of care he provides to his patients, as well as the productive follow-ups he conducts.

We also appreciate the fact that he is recognized by all major insurers and practices within insurance guideline fees. However, we can’t help but be disappointed with minor issues regarding overpricing.

Some of the complaints are about him charging more than the consultation fee for manual examinations. They’re also said to have been charged extra for admin fees and room usage, which is a total letdown in general.