What is the treatment for emphysema?

Emphysema is an abnormal and persistent dilation of the distal airways of the terminal bronchioles, often accompanied by destruction of the alveoli. Emphysema is a pathological diagnosis and is more common in chronic obstructive pulmonary disease. It is mainly seen in elderly people, especially men with a long history of smoking. Symptoms are chronic cough, white frothy sputum, chest tightness and shortness of breath after activity. Emphysema is a chronic disease with a long course of disease. Treatment is mainly based on drugs, especially inhaled drugs, such as tiotropium inhalation powder, budesonide formoterol inhalation powder, and oral expectorants.