What to Expect from Allergy Testing for Asthma

Your clinician may ask whether coughing, wheezing, chest tightness, or breathlessness changes around pollen, dust, mould, or animals. Skin-prick testing or a blood test can identify sensitisation to selected allergens. The result does not measure how well your lungs are working and does not replace breathing tests or an asthma assessment. A positive result matters most when it matches a repeated symptom pattern.

Record when symptoms occur, where you are, and whether exercise, infection, smoke, or an allergen seems relevant. Bring your inhalers and medicine list. Ask before changing antihistamines or any other medicine because some can affect testing. Continue your asthma medicines as prescribed unless the clinician gives different instructions. Follow-up may include reducing a confirmed trigger and reviewing your asthma action plan.

Contact a clinician promptly if asthma symptoms are becoming more frequent, waking you, or limiting normal activity. Seek emergency help for severe breathlessness, difficulty speaking, blue or grey lips, confusion, or rapidly worsening symptoms that do not improve with your action plan. Do not wait for an allergy appointment when breathing is seriously affected.

Ask which triggers are worth testing, whether your inhalers or other medicines affect the test, how the result changes your asthma plan, and whether lung-function testing is also needed.