Discolouration after fat dissolving injections. Will laser solve this issue? (Photo)

Hi had fat dissolving injections done on my knees 10 months ago. I'm left with a scar resulting from skin necrosis and a few discoloured patches. The discoloured patches are lighter in the morning and go darker after exercise or a hot bath. When pushed all discolouration disappears for a second and then returns. Will laser solve this issue? What other options are there? Many thanks for your help!