I have a depressed scar. Could I benefit from subcision? (Photo)

Following a facial tightening treatment an area at the top of my nasolabial fold became infected and took some skin away, creating a groove after healing. At first I thought this was just an exaggerating tightening effect. I attempted filler after this photo which settled outside of the indentation which further solidified my belief that it is actually a depressed scar. Could I benefit from subcision? Is there something else that could help (injectable), selphyll for example? Thanks!