... Ummm the last time the doctor gave me a ZPak it was for upper respiratory issues and it seemed to work well.
From what I understand with Corona, it is not Corona that is in the lungs, but that it leads to also having the upper respiratory issues.
That's correct. The respiratory issues with COVID-19 are are caused by a virus. Azithromycin is kinda sorta a ramped up Amoxicillin, and both are for upper body bacterial infections.