How can I get rid of the scar on my knee? It looks like a hypertrophic scar. (photo)

I am Asian with brown skin. I remember falling on my knee when I was 7 y.o I am 35 y.o. now.i have tried silicone pads 7 years ago and noticed that my scar flattened but did not disappear. The scars are much lighter than my knee so it stands out. Any recommendations on how I can get rid of these scars? Also any recommendation on how to lighten knees? My knees are much darker Than my legs. Thank you. I would appreciate any advice.

No doctor answers yet