For the control group, the patients will also be seen by the nurse specialist within 10 days of discharge from the hospital as in the PRP group. The patients will be offered smoking cessation advice and inhaler technique will be reinforced as in the PRP group. Both the control and PRP groups will be followed up every 3 months in our respiratory research clinic. The Standard medications (including inhaled corticosteroid if appropriate according to the GOLD guideline1) will be prescribed to the patients for management of COPD in both groups. Both the PRP group and control group will also be seen by nurse specialist in each visit for further education of the disease and counseling.