Keep track of the number of inhalations you use, and throw away the canister after you have used the labeled number of inhalations on the package.

Be sure you understand which of your inhalers you should use on a regular daily basis and which you should use for acute attacks. Consult your doctor about what you should do in case of worsening shortness of breath or cough, increased sputum, or worsening peak flow meter readings (whether you can self-medicate and when you must seek immediate medical attention).

Inform your doctor if your symptoms do not improve or worsen.