COPD is a disease that includes both chronic bronchitis and emphysema, you can have one or the other but often a combination of these diseases exist.
Chronic Bronchitis involves chronic inflammation, a cough and increased mucous production, which causes narrowing of the airways. The system of tiny hairs that clear mucous from the lungs become damaged, allowing secretions to remain in the airways. The narrowing and obstruction of the airways decreases the flow of air into and out of your lungs.
Emphysema is caused by damage to the small sacs (alveoli) in the lungs and the destruction of their walls. The lungs lose their elasticity and air becomes trapped in the lungs. The destruction of the sacs causes the lungs to become less efficient at exchanging oxygen and carbon dioxide with the blood.

• Bronchodilators (relievers): Bronchodilators work by relaxing the smooth muscles around the airways, allowing for improved air flow.
• Anti-inflammatories (preventers): These medications reduce inflammation in the airways.
• Antibiotics (for bacterial infections): Antibiotics kill bacteria and are used if an infection is suspected.
• Home Oxygen to reduce your shortness of breath and improve the quality of your life
Other treatments include proper nutrition and hygiene, exercise and rehabilitation programs.