What should you know about reactive asthma?

Asthma symptoms occur when sensitive airways tighten, swell and produce more mucus. This can cause wheezing, cough, chest tightness or shortness of breath, often after exposure to a personal trigger. House dust mites, pollen, smoke, cold air and respiratory infections are examples, but triggers differ between people. The phrase reactive asthma is commonly used for trigger-sensitive symptoms; a clinician confirms asthma using the history, examination and, when suitable, breathing tests. Allergic rhinitis can coexist and may make airway symptoms harder to control.

Keep a record of when symptoms appear, what came beforehand and how long they last. Use prescribed inhalers exactly as taught, including the correct technique and any written action plan. Reduce smoke, strong scents and known allergens where practical, and keep regular reviews if symptoms recur. A nebuliser treatment may be used in an acute setting when inhaled medicine needs to be delivered under supervision; it is not a replacement for an agreed asthma plan.

Call emergency services for severe breathlessness, blue or grey lips, confusion, exhaustion, inability to speak in full sentences, or symptoms that rapidly worsen. Obtain urgent medical advice when the reliever is not giving the expected improvement, symptoms keep returning, or wheezing prevents sleep or normal activity. Sit upright and follow the prescribed action plan while help is arranged.

Which triggers are most likely in my case? Do I need breathing tests or an allergy assessment? Can you check my inhaler technique and provide a written action plan? What exact changes mean I should seek emergency help?