Forehead reduction poor healing/scar, patchy hair loss, and recurring spots (12+ months post op)?

I had forehead reduction surgery over a year ago and have had nothing but issues. The scar isn’t flat, making it very obvious. I have a few bald spots that haven’t responded to minoxidil (which I had to start a few months after surgery due to extreme shock loss), and I keep getting really painful spots that come back whether they’re left alone or extracted. I had spitting sutures last year (and a few ingrown hairs) that caused painful red bumps, so worried about what’s under the skin.