@vickied "Gram positive cocci" refers to bacteria which are rod-shaped (cocci) and stain purple (gram positive) in the lab on a slide.
Examples of this bacteria as enterococcus, streptococcus, staphylococcus. Your doctor has probably tried the three most usually effective broad-spectrum antibiotics, so it is a good time for an ID doc consult to figure out exactly which bacteria you have, and what drug(s) it is sensitive to.

I am waiting for a test result myself, to see if the staphylococcus that keeps attacking every cut or wound on my skin is also in my lungs. They will also be testing for pseudomonas.