Allergy, asthma and food allergy centers: what to know

Care may involve an allergist, respiratory clinician, dietitian or trained nurse. The team can connect symptoms with possible exposures, review previous reactions and coordinate care when asthma and food allergy overlap.

A specialist usually begins with a detailed history: what happened, how quickly symptoms developed, what was eaten or inhaled, and which medicines helped. Skin or blood testing may support a diagnosis, but results must be interpreted alongside that history. A positive test alone does not always prove that an exposure causes symptoms.

The resulting plan may cover trigger avoidance, asthma control, medicine technique, food-label reading and a written response plan. Supervised challenge testing may be considered in an appropriately equipped clinical setting when the diagnosis remains uncertain.

Bring a list of symptoms, suspected triggers, medicines and previous emergency visits. Photos of a rash, ingredient labels and the timing of meals or exposures can help reconstruct an episode. Take inhalers, spacers or adrenaline auto-injectors so the team can check technique and expiry dates.

Do not deliberately eat a suspected food or stop prescribed medicines to test a theory at home. Before any clinic testing, follow the center's instructions about medicines, food and what equipment to bring.

Call local emergency services immediately for trouble breathing, throat or tongue swelling, collapse, faintness, confusion, or rapidly worsening symptoms after a possible allergen exposure. If a prescribed adrenaline auto-injector is available, use it according to the personal emergency plan and do not delay emergency help while waiting to see whether symptoms settle.

New wheezing, repeated vomiting, widespread hives or an itchy throat after exposure also deserve prompt assessment, particularly when more than one body system is involved. Emergency evaluation remains necessary even if symptoms improve after adrenaline because they can return.

Ask which diagnosis the history supports, what each proposed test can clarify, and whether asthma control changes the reaction plan. Confirm which symptoms should trigger adrenaline, who needs a copy of the written plan, how to replace expired devices and whether a dietitian can help maintain a balanced diet while avoiding confirmed triggers.