Shortness of breath not relieved by an inhaler

A reliever inhaler may not help if the flare is severe, the device is empty, the technique is ineffective, or the medicine is not the right treatment for the cause. Breathlessness can also come from infection, anaemia, a heart rhythm problem, angina, a clot, or another condition rather than airway narrowing. Wheeze, cough, chest tightness, fever, palpitations, ankle swelling, or sudden onset provide useful clues, but cannot confirm the cause.

Sit upright, stay as calm as possible, and follow the personal action plan prescribed for your inhaler. Check the device and use a spacer if one was prescribed. Do not keep taking extra doses beyond your plan or use someone else’s medicine. If relief does not come promptly, contact urgent medical services and take the inhaler with you.

Seek emergency help for severe or worsening breathing difficulty, inability to speak in full sentences, blue or grey lips, drowsiness, collapse, severe chest pain, or a poor response to your prescribed reliever. Sudden breathlessness, facial swelling, or a widespread rash also requires immediate help.

Ask your doctor to check inhaler technique, explain your action plan, confirm when to repeat a dose, and assess whether infection, heart disease, or another cause is contributing.