There’s no cure for asthma, a chronic lung disease marked by inflammation of the bronchial tubes (airways) of the lungs.But a number of treatments for asthma are available — both to help prevent symptoms, and to treat them when they do occur.Without proper treatment, asthma may get worse as you get older, with asthma attacks increasing in their frequency and severity.

Treatment for asthma aims to do the following:

  • Quickly resolve symptoms when they occur
  • Prevent symptoms and attacks
  • Improve your sleep and activity levels (1)

Asthma Inhalers:

Metered-Dose Inhaler (MDI) This is the most commonly used type of inhaler. It has a boot-shaped mouthpiece into which a pressurized, medicine-containing canister is inserted. This design has been in use since 1956.

You deliver a measured dose of the medicine to your lungs by inserting the mouthpiece into your mouth and pushing down on the canister while inhaling.

Your MDI may have a counter that tells you how many doses are left in the canister.