Pulse dye laser for scars on lower legs, and scar on knee, what would u suggest would be best laser treatment for scars?

I have has surgery for compartment syndrome 5 months ago and have had a skin craft due to swelling from collection of blood , I have had 5 pulse dye laser and 4 fraxel treatment. Which was 3 months ago I have also had a further 2 pulse dye laser , I have not noticed any improvement in reducing redness at all , the scar on my knee I have had 10 pulse dye lasers and 8 fraxel lasers done on scar that is over year old with little improvement ,what do u feel would be best treatment to improve scars

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