Hello and hope you are doing well.
As suggested, Azithromycin is an antibiotic used to treat many different types of infections caused by bacteria. As, COPD is Chronic obstructive pulmonary disease, which a chronic disease and causes symptoms of cough, breathlessness and wheezing. The commonest cause for COPD is smoking and not infection. But infection can coexist with COPD.
Hope this helped and do keep us posted.
Only if you have an infection.