To me, since it started with a bubble (I assume the sticking out scales were from the bubble), and you mention wounds, it isn't dropsy. I think the fish has just developed secondary infections due to the abovementioned problems. I think Melafix is the thing to try (but can't find my bottle to read what it treats so check first).
Orandas can develop swim bladder problems easily too, in this case as a result of the other problems.