Possibly. Cough is one of several disabling symptoms in emphysema but is not usually life threatening. A number of remedies are available.
Yes. Check with your lung specialist symbort tio albuterol.
Yes... COPD is a slowly progressive disease. The best way to slow the progression is to avoid smoking. Your doctor can prescribe treatment to minimize your symptoms. If your oxygen level is low enough, you would need supplemental oxygen.