What is Anaphylaxis?

Anaphylaxis (pronounced ana-fil-ax-is) is a serious and often sudden allergic reaction. It can occur when someone with allergies is exposed to something they are allergic to (known as an allergen). Reactions usually begin within minutes and rapidly progress but can occur up to 2-3 hours later.


Anaphylaxis is potentially life-threatening and always requires an immediate emergency response.


If you have experienced a sudden allergic reaction in the past, then you may be at risk of anaphylaxis even if you have not had anaphylaxis before. We advise that you see your GP and ask for a referral to an allergy clinic.


A diagnosis of anaphylaxis can be daunting at first, but by becoming well-informed, thinking ahead and employing daily coping strategies, people affected find that life can return, almost, to normal.

Supporting People With Serious Allergies

Here are some of the ways we support people to manage day-to-day life with a serious allergy.


About Anaphylaxis UK

Anaphylaxis UK is the only UK-wide charity operating solely for the growing numbers of people at risk of serious allergic reactions and anaphylaxis. While there’s no treatment or cure for anaphylaxis, we believe that by providing information, training and support, there is a brighter future for people living with serious allergies.


Our mission is to create a safe environment for everyone with allergies by working with and offering training for the food industry, schools, pre-schools, colleges, health professionals and other key groups.

At work

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Training & Education

Is Your School AllergyWise?

We offer training for teachers and all school staff. We encourage a whole school allergy awareness approach – the more staff who understand allergy and how to recognise an allergic reaction, the more likely your school will be able to safely manage allergic pupils.

Check with your school and ask if they have done our training.

Ways you can help

There are many ways that you can get involved with the vital work we do! Your support has a huge impact on the lives of people with serious allergies.


Your time is as valuable as your donations, so explore the button below to discover all the ways you can help us further our mission of securing a brighter future for people at risk of anaphylaxis.

Living with Anaphylaxis

Guidance for Parents

If you're a parent, explore our guide all about teaching children how to live with food allergies and educating them about anaphylaxis.

Managing Allergies at University

As you leave for university, it might be the first time you’ve had to manage your allergies on your own. Make the transition a bit easier with Anaphylaxis UK.

Shopping & Preparing Food

If you or a member of your household has a food allergy, there are precautions you can take while shopping or preparing food at home to ensure food safety.


Allergies can be stressful, especially when you’re in a busy airport or in new and unfamiliar surroundings. Follow our top tips and be as prepared as possible to stay safe and confident while travelling.

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Latest News from Anaphylaxis UK

Below are all of our latest news posts. Click through to read more.

Bee Allergy Aware 19th July 2022

We have launched our new Bee Allergy Aware campaign to encourage the public to learn more about bee and wasp sting allergy and how to keep themselves safe. As we all spend more time outdoors, bee and wasp stings become

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Summer festivals with allergies 19th July 2022

Summertime in the UK for many people means one thing… festivals! It’s exciting to see festivals are returning to our calendars. We know that festivals are a time to let loose and listen to some of your favourite artists in

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Serious allergies in the hot weather 14th July 2022

Anaphylaxis UK helping you to keep your adrenaline cool. The hot weather brings additional challenges to those with serious allergies who carry adrenaline auto-injectors. Adrenaline is the first line of treatment for serious allergic reactions (anaphylaxis). It is available on

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