Dr. Harsha Kariyawasam

MBBS PhD FRCP (UK) BSc (hons)

Consultant in Allergy and Medical Rhinology
Honorary Senior Lecturer
Royal National Throat Nose and Ear Hospital London and University College London Hospital (UCLH) and University College London

Specialist Expertise

Dr Harsha Kariyawasam is Consultant in Allergy and Medical Rhinology at Royal National Throat Nose Ear Hospital, London and University College London Hospitals NHS Foundation Trust. He is one of few specialists in the UK that has trained in Allergy, Rhinology and Respiratory Medicine (diseases of the nose, upper and lower airway) together, allowing him to work closely in a multidisciplinary manner with leading Ear Nose and Throat (ENT) Surgeons. His expertise includes the areas: allergic and non-allergic rhinitis; severe asthma; immunotherapy (allergy desensitisation); use of biologics in allergy, anaphylaxis including wasp/bee venom allergy; food allergy; acute and chronic urticaria (hives), angioedema and allergic eczema. In addition he is an expert in Medical Rhinology including sinusitis; nasal polyposis; loss of smell; cough; airway manifestations of gastric reflux; upper airway manifestations of systemic disease (for example, Sarcoidosis, Wegener’s Disease, Churg-Strauss Syndrome, bronchiectasis, cystic fibrosis and immunodeficiency). He is an expert also in Cough and Complex asthma.

Clinical Training

Dr Kariyawasam read medicine at St. Bartholomew’s Hospital Medical College, University of London. General medical training was undertaken in London, and specialist training in Allergy, Respiratory Medicine and Rhinology was completed over a 7 year period at the Royal Brompton Hospital. Further training at the Hammersmith Hospital, St Mary’s Hospital and St Thomas Hospital (Skin Allergy) was also undertaken.

Academic Training

Dr Kariyawasam was a Clinical Research Fellow at the National Heart and Lung Institute, Imperial College London. He undertook research training (leading to a PhD) in clinical methodology and basic science. In addition, he undertook further post-doctoral research training in mechanisms of nasal allergy and nasal neuronal activation. Dr Kariyawasam is an invited speaker at a national and international level. He is also a reviewer in asthma and allergy to the leading high-impact respiratory and allergy journals. He is a current busy researcher and his completed publications are listed via the link below.

Selected Awards

Imperial College Trust Fund-2003
Clinical Research Fellowship

PhD Thesis Prize-2008 (most outstanding student and thesis)
National Heart and Lung Institute
Imperial College London

Clinical Excellence Award-2017
University College London Hospitals


Click here to view publications

Professional Membership

  • British Society for Allergy & Clinical Immunology
  • The Anaphylaxis Campaign
  • British Thoracic Society

Clinic Timetable

Monday 3pm to 8pm No 9 Harley Street
Saturday 10am to 2pm No 9 Harley Street

On the basis of need patients are also seen at the Royal National Throat Nose and Ear Hospital and UCLH.