6 months after hairline lowering surgery, what can I do to correct hypopigmented scarring and painful bumps? (photos)

I had a surgical hairline advancement procedure about 6 months ago and have been having complications with it. I have very visible hypopigmented scarring and painful bumps that still bleed. I spoke to the surgeon who did the procedure and they recommended seeking laser treatment and steroid injections. What do you recommend to fix this? Can the scarring be treated?