How soon after mastectomy can unusual scar be "tidied"

It is 9 weeks since my mastectomy. My scar has healed well, so far, with intermittent  swelling in my armpit. My main concern is my "triple" cleavage with a fairly hard "knob"  between two of the "valleys" and at the outer end another fairly pointy lump which doesn't  "stretch out" when I lift my arm. Most bras, needed to manage the remaining 14DD boob, dig into the outer end of scar, which has a reasonably firm, elongated lump below, where bra bands go. I feel like I have a mini " bagpipe" in my left axilla and below.

Going to see surgeon who did my 3 surgeries later this month, I just wonder if I am worrying over not much, although discomfort is a constant reminder.