What Can I Do to Get Rid of the Hardness in my Butt Post BBL? When Will It Soften Completely?

I have a one hard spot (size of tennis ball) and another smaller but harder spot (size of marble). It usually isn't problematic but when I exercise the hard spot gets harder and more noticeable to the touch. The hardness is close to the surface of my skin. I had my first BBL 11 months ago and my second 4 months ago. The hard spots were present since the first BBL. How long will it take to soften completely? (6mos, 1yr or longer) What steps can be taken to soften it? (medically and personally)