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 safer environment for everyone with allergies by working with and offering training for the food industry, schools, pre-schools, colleges, health professionals and others.


Training & Education

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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 pupils with allergies.

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.

Anaphylaxis UK's Convenient Clothes Collection

If you have a busy schedule or a large quantity of clothes to donate, Anaphylaxis UK offers a FREE pickup service.

Have your donated items collected from either your home, workplace, school or university saving you time and effort!

Living with Serious Allergies

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.

Allergy Outlook is our monthly newsletter

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Latest News from Anaphylaxis UK

All of our latest news posts. Click through to read more.

Allergy immunotherapy research round up 4th December 2023

A round-up of food immunotherapy studies published in the last month.

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Stay safe while feeling festive – allergens to look out for at Christmas, Hanukkah (Chanukah) and Yule 30th November 2023

Allergens can find their way into a variety of unexpected products during the festive season, but if you or your child have allergies, you can still enjoy the food and decorations. Use this list of festive foods, drinks and decorations that might contain your allergen as a guide for what to look out for.

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Get your ticket for the Business Symposium 24th November 2023

The Anaphylaxis UK 2023 Business Symposium, is a landmark event in the world of food safety, bringing together professionals from all corners of the food industry.

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Allergy Alerts

Sulphur Dioxide Alert – Lidl XXL Ocean Sea Cooked & Peeled Large Prawns 29th November 2023

Product Name: Lidl XXL Ocean Sea Cooked & Peeled Large Prawns Pack Size: 1kg Best Before: Jan 2025     We have been alerted by Lidl that it is recalling its XXL Ocean Sea Cooked & Peeled Large Prawns from

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Hazelnut (nuts), Milk and Oats Alert – Morrisons Free From Gluten Choco Crackles 16th November 2023

Product Name: Morrisons Free From Gluten Choco Crackles Pack Size: 300g Best Before: 18/09/2024 Product Code: 110746081     We have been alerted by Morrisons that it is recalling its Morrisons Free From Gluten Choco Crackles from sale because it

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Milk Alert – Tesco Plant Chef Sweet Potato & Chickpea Tikka Masala 13th November 2023

Product Name: Tesco Plant Chef Sweet Potato & Chickpea Tikka Masala Pack Size: 400g Best Before: End of August 2024 Batch Code: L23215S We have been alerted by Tesco that it is recalling a specific batch of its Plant Chef

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