COPD is a chronic and debilitating lung disorder characterized by airflow blockage and breathing problems. As per Centers for Disease Control and Prevention (CDC) COPD was the third leading cause of death in the United States in 2011. Smoking is the most common cause for COPD. Other factors like air pollutants, dust, genetic factors and respiratory infections also play a role. Common clinical features of COPD include cough, shortness of breath, sputum production and chest tightness. Quitting smoking is the first step towards treatment. Inhalers like bronchodilators or steroids are commonly used for treatment. Antibiotics are also used when there are COPD flare-ups.
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