Unfortunately, if you’ve gone through the hot phase and finally the cold phase, meaning you’ve had a period of time when there were frequent changes, and now your eyes have stopped changing but they’re still bulging, an ophthalmologist or occuloplastic surgeon would be the place to go to find out what your options are for reducing the bulge that remains. Once you’ve gone through the entire cycle, the only thing that you’re dealing with is scar tissue that remains from the original TED hot phase. No diet or other therapy will have an effect on the scar tissue.
There are several surgical options, but the doctors would be the best source to figure out what’s right for you at this point. We have people here who’ve gone through every possible surgery, so you have a good source of info here once you know what you’re facing.
One quick point: make sure that the doctor codes your procedure in such a way as to NOT indicate that this is "cosmetic." Insurance companies will reject that out of hand. You are correcting tissue that was damaged as a result of a disease. This isn’t vanity.