Surely John wasn't a pervert! (Fuzzy Logic)
Right... Bare with me here.
John's miracles, listed here:
First, John resuscitated Del's mouse. It pretty much involved John sucking the "Bad" or the "Death" out of the Mouse, through it's mouth, into his mouth... Evidenced by him blowing out the "Bad stuff".
Second, John sucks the Cancer out of Hal's wife as she lays in bed dying. He just sucks it... right out of her mouth, into his and disposes of the badness, INTO Percy... Via, yes, you guessed it, the Mouth; only for Percy to do "Bad" and then expel the "Badness" via his mouth...
You see, here's my thing...
Paul Edgecomb... Paul Edgecomb has a Groin/Penis infection... Now for the purposes of continuity n'all, shouldn't John Coffe have given Paul Edgecomb a full on Blow Job?