PHLOX: In the future, it may be possible to reverse the cosmetic effects.
ANTAAK: I suppose this is what I deserve. Millions of my people will have to live with this disfigurement. It'll be passed on to our children. Life won't be easy for us.
PHLOX: You did your best to correct your mistakes. That's all we can ask of ourselves.
ANTAAK: I doubt my superiors will allow me to remain in my position. I'll need to find a new specialty. Perhaps cranial reconstruction.
As someone who has a permanent health impairment who's read for years that a cure was inevitable (it's no closer now than 10 years ago when I got my injury), a doctor's optimistic outlook is no guarantee any cure is coming, either in the real world or Star Trek.