Recognise the symptoms

Symptoms of an allergic reaction usually develop within a few minutes of being exposed to the allergen. Symptoms will vary from person to person so it is important to discuss your symptoms with your doctor and be clear on what to look out for. Anaphylaxis usually develops suddenly and gets worse very quickly.

Severe allergic reaction (anaphylaxis) symptoms include:
  • Feeling lightheaded or faint
  • Breathing difficulties, such as fast, shallow breathing
  • Swelling of the throat and mouth
  • Blue skin or lips
  • Confusion and anxiety
  • Collapsing or losing consciousness
Mild to moderate allergic reaction symptoms include:
  • Red, raised, itchy rash
  • Abdominal pain, nausea and/or vomiting
  • Itchy, red, watering eyes
  • Sneezing, itchy, runny or blocked nose
  • Swollen lips, tongue, eyes or face

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