My stomach feels like cardboard 2 weeks after liposuction. My surgeon says it's fibrosis. Will carbon dioxide injections help?

So my stomach has hard lumps on it after my lipo. My skin also feels so tight that it can rip. I go to this massage place abs they said I have fibrosis they give me these torture massages, then drain the fibroidsame that can be drained...then they inject me with carbon dioxide which feels like I've been set on fire. They told me it's to fix the fibrosis and to turn my skin back soft. Should I let them do this or will my skin eventually soften?