Allergy, asthma and immunology: how they connect

An allergy can inflame the nose, eyes, skin, or airways. Asthma involves variable airway narrowing and inflammation, but not every case is driven by an allergen.

Dust mites, animals, pollen, mould, infections, exercise, smoke, and strong fumes can be relevant to breathing symptoms, although they act through different pathways. A history linked to place, season, activity, and exposure helps separate these patterns.

Immunology assessment may be considered for recurrent or unusual infections, unexplained inflammation, or suspected immune dysfunction. It is not the same as routine allergy testing, and the investigations depend on the clinical concern.

Track cough, wheeze, chest tightness, night waking, activity limits, reliever use, and possible exposures. Bring inhalers to appointments so a clinician can check technique and confirm which medicine is for control and which is for rapid relief.

Follow the written asthma plan, reduce confirmed triggers where practical, and treat linked nasal disease as advised. Do not rely on allergy avoidance alone if controller treatment has been prescribed.

Seek emergency help if breathing is severely difficult, speech is broken by breathlessness, lips look blue or grey, the person becomes drowsy or confused, or the prescribed reliever is not helping. Use emergency medicines exactly as directed in the action plan while help is arranged.

Request an earlier review when symptoms wake you, restrict normal activity, recur after the same exposure, or require reliever treatment more often than your plan allows.

Ask whether your pattern suggests allergic asthma, which lung or allergy tests would change treatment, and how to recognise loss of asthma control. If infections are the concern, ask what features support an immune evaluation and what each proposed test examines.