Ah, but Nyarlathotep is the messenger, heart, and sould of the Outer Gods. He is neither tiny nor weak, He is as close to omniscient as possible. He is the past, the present, and the future. Even if He is transported to the center of the sun, He will suffer no harm from the experience and will be able to leave at any time he so chooses. Also, you, a mere genie, are powerless to, say, turn me back 'to normal,' afterwards because, being an Outer God, Nyarlathotep is is far, far more powerful than you could ever hope to be.
And the real kicker? Narly is a bigger dick than YOU. If anything, he probably created you, as you bring death, insanity, and terror to mankind.
Which, of course, pleases him.