High-allergy foods: what to know

High-allergy foods are foods that commonly trigger immune reactions, but any food can cause an allergy. Common examples include peanuts, tree nuts, milk, egg, wheat, soy, fish, shellfish, and sesame. A reaction can affect the skin, mouth, stomach, breathing, or circulation, and symptoms may not be identical each time.

Food Allergy may cause hives, swelling, vomiting, wheeze, coughing, or an Itchy Throat soon after eating. Food intolerance is different from an immune allergy and may cause digestive discomfort without the same emergency pattern. A severe, rapidly developing reaction can be Anaphylaxis, particularly when breathing, swallowing, voice, alertness, or circulation changes.

Stop eating the suspected food and record the ingredients, amount, timing, symptoms, and any treatment used. Do not deliberately re-test a suspected allergen at home. Read labels carefully, ask about shared utensils or preparation areas, and tell schools, workplaces, restaurants, and caregivers about a confirmed allergy. Arrange Allergy Testing or a clinician review before removing many foods from a child's or adult's diet. Follow the personalised emergency plan you are given.

Call local emergency services immediately for trouble breathing, throat or tongue swelling, repeated vomiting with other allergic symptoms, faintness, confusion, or widespread rapidly worsening symptoms. Use prescribed emergency medicine according to your plan while help is coming. Anaphylaxis Emergency Treatment should not be delayed while waiting to see whether symptoms settle.

Ask whether the episode fits Food Allergy, which ingredients need avoidance, and whether testing is appropriate. Ask how to recognise early Anaphylaxis, what emergency medicine to carry, how to use it, and when to attend follow-up after a reaction.