Have illegal butt injections for almost 10 yrs its a bit sensitive theirs 1 small lump on 1 cheek and slight discoloration?

Should I be concerned? Will it get worse or is it possible it'll be ok? I also wanted to do bbl is this safe? Is it possible a infection is developing? What can I do to figure out what was injected and if its ok? I also used to get massages on a suction like machine that made my butt feel softer and was told would break up the lump is this true? Is it safe? Since it been so long since I got injected should I be less concerned or can I still be in trouble? Are there Drs. that specialize in this?