By Dave Donovan
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An inhaler is prescribed by doctors to patients suffering from chronic obstructive pulmonary disease (COPD), asthma or many other types of respiratory conditions. The inhaler, when pressed, releases a mist of medication into your lungs to instantly help relieve the symptoms. To receive the best results from your metered-dose inhaler, you should follow the proper method of using it. Here is how to use an inhaler properly.