Fibrosis on chin from staph. How can this be improved? (Photo)

2.5 yrs since staph inf left hard fibrosis under the skin on left side of chin. Crescent shape in picture. Had a few Kenalog injections, but it’s still hard and skews my chin to left, esp. obvious on video. Some Dr.’s are hesitant to keep going with Kenalog. Massage recommended but just my fingers don’t soften anything. I got these stainless steel tools (marketed for “acupuncture”) b/c they seem like the right size and shape to get in there. But nervous I’ll create a callous under chin skin.