Radiesse is not normally recommended for injection into the lips, and for, at least partly, exactly the problems you're having. If you have permanent bumps from this (or any other filler, or even the reaction to a filler, such as bleeding and scar tissue) then you'll have to consider having them removed surgically. I would advise that you consult with one or more board-certified plastic surgeons to see what your options might be.
I hope that this helps and good luck,
Web reference: http://www.bodysculpture.com