03/03/2026
In an allergic medical emergency, staying calm is not always easy. That is why knowing what to do is so important.
Anaphylaxis is the most severe form of allergic reaction. It is potentially life-threatening, and symptoms can escalate very quickly. If you suspect anaphylaxis, administer your AAI (adrenaline auto-injector, such as EpiPen or Jext in the UK) immediately.
If you even suspect anaphylaxis, act without delay.
When allergic symptoms begin, many people question what they are seeing or experiencing:
👉Is this anaphylaxis, or is it just a bad allergic reaction that antihistamines will relieve?
👉If I wait just a bit longer, might the symptoms start to subside?
👉I am definitely feeling worse, but I’m not sure my reaction is severe enough to use my EpiPen.
👉What if I use my EpiPen and it is not anaphylaxis?
👉How unwell do I need to feel before I act?
👉How ill does my child need to be before I inject?
The guidance is clear: if you suspect anaphylaxis, even if you are not certain, administer your adrenaline auto-injector immediately and call 999 for an ambulance.
The risk of untreated anaphylaxis far outweighs the risk of giving adrenaline unnecessarily. Adrenaline is the only first-line treatment for the severe symptoms of anaphylaxis. There is no substitute. Antihistamines will not halt anaphylaxis.
To grow your confidence:
✖️Ask your GP for a trainer pen and practise using it.
✖️Always carry two adrenaline auto-injectors in case a second dose is needed before emergency help arrives.
Being prepared can reduce hesitation. In an anaphylaxis emergency, acting quickly can save a life. Please share this far and wide. If you suspect anaphylaxis, act without delay.
Medical advice shared by Natasha’s Foundation is for general guidance only. Always consult a qualified healthcare professional for medical advice or treatment