my friends uncle has large (size of 5 quarters round) a cyst/boil like lump under his armpit, with smaller bumps trailing down onto his stomach and side area, the big cyst like thing  gets very large and uncomfortable to where he cant put his arm down, he has my friend pop it with a steralized needle (she wears gloves)to drain it because he doesnt have insurance, it has thick green/yellow and sometimes bloody comboed stuff that oozes out of it. his complexion is also kindof yellow ish and he has a bad cough
Hello! Thank you for the query. This can be caused by an abscess due to some infection, infected sebaceous cyst or even metastatic lymph node. This really needs medical attention and should not be left as it is. He should consult a surgeon as soon as possible. Incision, removal and histopathologic tests should be done. Hope this will help. Regards.