How asthma affects breathing

Symptoms may come and go, vary with triggers and improve after prescribed asthma treatment. New breathlessness should not automatically be labelled asthma, especially when it feels unlike previous attacks or comes with chest pain, faintness or other unusual features.

Asthma often presents with difficulty moving air out, wheezing, cough or a band-like feeling across the chest. Some people notice symptoms during exercise, after exposure to smoke, dust or fragrance, with respiratory infections, or during the night.

The absence of wheeze does not rule out a serious attack. Track whether you can speak and walk normally, whether the reliever works as your plan predicts, and any peak-flow zone included in your personal action plan.

Stop the triggering activity, sit upright and use the prescribed reliever exactly as your asthma action plan directs. A spacer should be used if it is part of your instructions. Stay away from smoke or strong fumes, and ask someone to remain with you if symptoms are escalating.

Once stable, arrange a review if breathing episodes are returning, waking you or limiting usual activities. Bring your inhalers and spacer so technique can be checked. Continue prescribed preventer treatment; repeated reliever use should prompt reassessment rather than unsupervised dose changes.

Call emergency services if you are struggling to speak in full sentences, breathing is rapidly worsening, your lips or face turn blue or grey, you feel confused or unusually drowsy, or your prescribed reliever is not helping. Follow the emergency part of your action plan while help is coming.

Urgent assessment is also appropriate when breathlessness is different from your familiar asthma pattern, starts with chest pain or faintness, or follows a serious allergic reaction. Do not wait for wheezing to appear before seeking help.

Ask how your symptoms fit your current level of control, which inhaler to use in each action-plan zone, and whether your technique is delivering medicine effectively. Mention night waking, exercise limits, cough, allergies, workplace exposures and any episode that felt different from usual.