Lanilor's Head Act 4

[RiceZBallz]

So I purchased this head at one of the merchants, used the face mask to turn into an elf, ate the head and now I have permanent atrophy? I was able to turn back to human and back to elf and healed it some how, but now that character died in another battle and the same trick doesnt work. Its my ranger of course as well! Please help.