Asthma and difficulty breathing

Breathlessness may occur with wheeze, cough or chest tightness, although the pattern differs between people. Other heart and lung problems can also make breathing difficult, so new or unexplained symptoms need clinical assessment.

Asthma symptoms can vary over the day and may follow exercise, smoke, dust, allergens, cold air or a respiratory infection. Some people notice trouble breathing out, a tight chest, noisy breathing or a cough that interrupts sleep.

Difficulty breathing is a presentation of asthma, but its presence alone cannot identify the cause. A clinician may consider the timing, triggers, examination, oxygen level and breathing tests. Sudden breathlessness can have causes other than asthma and should not automatically be treated as a familiar flare.

Stop the activity, sit upright and try to remain calm. Follow the worsening-symptom steps in your written action plan and use the prescribed reliever with the technique your clinician demonstrated. A spacer may help with a compatible inhaler if it forms part of your plan.

Monitor whether speaking, walking and breathing become easier. Seek prompt medical advice when symptoms keep returning, wake you at night, restrict usual activity or require more reliever than your plan specifies. Arrange an asthma review after a significant flare even if you feel better.

Call emergency services for severe or rapidly worsening difficulty breathing, inability to speak in full sentences, blue or grey lips or face, confusion, collapse, marked drowsiness, or no meaningful improvement after following your emergency asthma instructions. Continue the prescribed emergency steps while help is coming, and do not lie flat or drive yourself.

Ask how to distinguish a mild change from a serious flare, which inhaler to use for rapid relief, and how to check that your technique is effective. Confirm what should happen after an attack and whether persistent cough, nasal allergy symptoms or exercise-related difficulty needs separate evaluation.