Several types of devices are used to deliver medicine in a fine mist right into the lungs. They are used to treat asthma. They can also treat other lung diseases, such as chronic obstructive lung disease (COPD). These devices cause fewer side effects than medicine taken by mouth or injection.
The type of device you are given will depend on your:
Severity and frequency of your symptoms
The most common types of inhalers are:
Metered-dose inhaler (MDI). This is the most common type of inhaler. It uses a chemical to push the medicine into the lungs. It is held in front of or put into the mouth as the medicine is released in puffs.
Nebulizer. This is a machine that sprays a fine, liquid mist of medicine. The medicine is delivered with a mouthpiece or mask. Nebulizers are often used by people who can't use metered-dose inhalers. This includes babies, young children, and people with severe asthma.
Dry powder or rotary inhaler. Dry powder is inhaled with these devices. When you breathe in at the mouthpiece, the medicine is released. These inhalers may be used by children and adults. They must be kept dry. This stops the powder from clumping together.
These devices may deliver both quick-relief and controller medicines. For example:
Corticosteroids to reduce airway swelling and inflammation
Bronchodilators to open narrowed airways
Other medicines for some lung conditions
Talk with your healthcare provider, nurse, or pharmacist about how to use the device prescribed for you. Read and follow the device instructions. And make sure you know how to keep your inhaler or nebulizer clean.