Recently a text message was sent to some patients and carers from us by mistake. We're sorry for any confusion this has caused.
Strike action is taking place in September and October. We'll contact you directly if you or your child's appointment is affected.

Allergy referrals

We are a specialist allergy service providing a holistic diagnostic and therapeutic service for children with allergic disease from around the UK.

Our active research programme ensures our patients have early access to the latest therapeutics.

Our consultants are always happy to discuss clinical problems and possible referrals so please do not hesitate to get in touch.

Who can refer

GPs and other secondary services.

How to refer

Due to high demand for our clinics, the Trust has agreed with CCGs to restrict e-RS access to GP practices in the following boroughs:

  • Greenwich
  • Bromley
  • Bexley
  • Lewisham
  • Croydon
  • Southwark
  • Lambeth
  • Westminster
  • Hackney
  • Wandsworth

This is to ensure we can provide faster, safer access to local patients.

All NHS GP referrals must be submitted using the NHS e-Referral service (formerly Choose and Book).

Referrals sent to the mailbox or by post from GPs will not be processed.

Tertiary referrals can be emailed to

This service is suitable for patients up to 16 years of age and is for urgent and routine referrals only.

Conditions, diagnosis and specialist treatments


NHS GP referrals

All NHS GP referrals must be submitted using the NHS e-Referral Service (e-RS). Referrals sent by email or post from NHS GPs will not be processed. 

Referral contacts

Tel:  020 7188 3300


Children's allergy service
Otter outpatients
Second floor
staircase B, South Wing
St Thomas' Hospital
Westminster Bridge Road
London SE1 7EH