Allergy symptoms, self-care and red flags
A concise guide to common allergy symptoms and when emergency assessment is necessary.
An allergy is a reaction to a substance that is usually harmless. Triggers can include foods, pollen, dust, animals, insect stings and medicines, and symptoms vary from mild to severe.
Common symptoms
- Sneezing, a runny or blocked nose, coughing or wheezing.
- Itchy, red or watery eyes.
- An itchy, raised rash or swelling.
- Feeling sick, vomiting, diarrhoea or abdominal discomfort with some allergies.
Everyday management
Avoid a known trigger when practical and follow your allergy action plan if you have one. A pharmacist or doctor can help select suitable treatment because the best option depends on the symptoms, trigger, age, health conditions and other medicines.
Signs of a severe allergic reaction
Sudden swelling of the lips, mouth, tongue or throat; difficulty breathing or swallowing; blue, grey or very pale skin; severe dizziness, confusion, collapse or unresponsiveness can indicate anaphylaxis. This is a medical emergency.
