Inhaled medicines, or medicines that you breathe directly into the lungs, are an important part of treatment for chronic lung disease. A variety of medicines are available in an inhaled form. When inhaled, the medicine quickly reaches the airways and less is absorbed into the bloodstream. There are a number of devices that deliver medicine directly to the airways. Metered-dose inhalers (MDIs), dry powder inhalers, nebulizers and soft mist inhalers are currently available with different medicines. A combination of inhaled medications can be used for a number of chronic lung diseases, including asthma and COPD.