Tongue or throat swelling, wheezing, breathlessness, sudden weakness or widespread hives may indicate anaphylaxis.
A severe allergic reaction can progress rapidly. For airway swelling, breathlessness, wheezing, fainting or severe symptoms involving several body systems, call local emergency services immediately. If the person has a prescribed adrenaline auto-injector, use it according to their emergency plan.
Medical principle
In emergencies, the aim is to recognise danger and obtain professional care quickly, not to diagnose at home. Symptom onset, underlying conditions and medicines are important information for the care team.
Practical steps that may help
- Note the exact time symptoms began and call local emergency services.
- Do not leave the person alone; give nothing to eat or drink if awareness is reduced.
- Prepare the list of medicines, allergies and underlying conditions for the care team.
When should you seek medical care?
Altered awareness, stroke signs, chest pain, severe breathlessness, substantial bleeding, anaphylaxis and severe dehydration require immediate action, not a routine appointment.
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