I had a chin implant that in ten months has serious soft tissue atrophy causing a HUGE indentation on half of my chin?

You do not have an allergic reaction to the implant material, you have a chronic indolent implant infection. Over time, this chronic infection has caused loss of soft tissue. It will not be solved (and will likely get worse) if you first do not get this implant out and the source of the infection removed. The soft tissue indentation is going to need a dermal-fat graft for restoration which will have to wait until the infection is cleared for restoration of chin contour.

Without examination I guess you have an infected chin implant that needs to be removed ASAP.Samir Shureih MD.FACSsshureih@msn.com

As soon as a problem arose after placement of the implant it probably should have been removed. You cannot adequately treat a surgical infection with the implant in place acting as a foreign body. Even if it is a foreign body reaction and not an infection the implant needs to be removed. At this point I would remove the implant ASAP and wait until all inflammation has subsided. At that point a demal-fat graft or fillers may be the best to restore proper fullness to the area.