In accordance to reading most of your work, I believe this is one of the stronger, if not the strongest piece you've wrote. The powerful imagery from the start begins to pain an almost redeeming quality in a person. As if 'I know you're ill and I want to cleanse you of your ailment but then it twists-
It turns into murder, depravation with a vexing and menacing overtone. It seems to be someone who has captured, kidnapped someone much weaker, whether or not it's a child is something else- The helplessness of the second stanza just drags the reader into this spiral which ends with the extinguishing of the captive life in what feels like a suffocating manner. I'd just toy with capitalization and some punctuation embellishment.
Wow ! Intense ! Such images ! I could basicly see before my eyes a small girl devouring a rotting corpse - or even better bitting off a worm infested wound from a living person's abdomen. Intense ! O,O I say it again. Very good image construction.
Yet in some parts the poem is a bit scattered - your rhyme and rhythm also suffers here and there.
But this is defenetly one poem I enjoyed, as if it was made for my sole enjoyement.