Bi's, tri's and core. You don't have many options if your shoulder isn't working. Is it unusable completely...bench, rows, lats, press?A forum full of gym rats and no one knows?
Take a break.Any specific exercise? I am aware of the different muscle groups. Its not completely unusable, not in the slightest. But if I target shoulders or anything that has moderate should strain, it tends to hurt quite a bit and I fear further damage