Chronic obstructive pulmonary disease, commonly known as COPD, is a serious respiratory illness that progressively worsens over time. COPD can make it very difficult to breathe, and as one of its most common causes is smoking, it is important to quit smoking immediately, regardless of the stage of diagnosis. In the later stages of COPD, there are several treatments currently available. In addition to prescription medications, there are also several pulmonary rehabilitation techniques available. The two most used medications for COPD include nebulizers and steroids such as prednisone. In addition to rehab and medications, there are many ways to improve lung health on a daily basis. As discussed, quitting smoking is the single best step for the treatment of COPD. Additionally, there are breathing exercises that are also effective when paired with regular, daily exercise. In the latter stages of COPD, oxygen treatments will be recommended.