Acute exacerbation of COPD (AECOPD) is a sudden worsening of COPD symptoms that require prompt medical attention. Treatment for AECOPD usually involves the use of medications to reduce inflammation in the airways, as well as oxygen therapy and breathing exercises. In some cases, hospitalization may be necessary for more intensive treatment. Other therapies, such as pulmonary rehabilitation, may be recommended to help manage the condition over the long term. Finally, it is important to avoid triggers such as smoke and air pollution to help prevent further exacerbations.