Asthma and emphysema

Asthma involves variable airway inflammation and tightening that may improve between flares or after treatment. Emphysema involves damage to the tiny air sacs and loss of lung elasticity, usually producing more persistent airflow limitation. Symptoms overlap, so diagnosis depends on history, breathing tests and sometimes imaging rather than cough or breathlessness alone.

Asthma symptoms often vary with triggers such as allergens, exercise, cold air or infection. Emphysema is part of chronic obstructive pulmonary disease and commonly causes gradually increasing breathlessness because damaged air sacs do not exchange air efficiently. Tobacco smoke is an important cause, although other inhaled exposures and uncommon inherited factors can contribute. Having both patterns may make day-to-day symptoms and flare-ups harder to interpret, but neither diagnosis can be inferred from a single symptom.

Take each inhaled medicine according to the prescribed schedule and ask for a demonstration if the devices differ. Treatment may address airway inflammation, airway narrowing or both; do not remove a controller medicine based on another person's regimen. Avoid smoke and arrange support to stop smoking if relevant. Vaccination, regular activity suited to your capacity and pulmonary rehabilitation may also form part of care. Record breathlessness, cough, sputum changes, night waking and reliever use so reviews reflect your actual symptom pattern.

Seek prompt assessment when breathlessness is newly worse, sputum increases or changes colour, fever develops, usual activity becomes noticeably harder, or inhalers provide less relief. Call emergency services for severe breathing difficulty, inability to speak comfortably, blue or grey lips, confusion, fainting, crushing chest pain, or symptoms that do not respond to the emergency steps in your personal action plan. Coughing up blood also requires prompt medical evaluation rather than being assigned to either condition.

Ask which findings support asthma, emphysema or both; what each inhaler is intended to do; and how your flare plan should distinguish familiar wheeze from an infection or another problem. Confirm that your inhaler technique matches every device. If breathlessness persists despite treatment, ask whether repeat lung-function testing, imaging, oxygen assessment or pulmonary rehabilitation would clarify the next step.