cancels suffocation

“—Suffocate.”

But after Kamijou took the first step, he suddenly lost all momentum.
It felt like a steel cable wrapped around his neck, and he flinched and bent over at the
pain. He grabbed his neck with his right hand like a person suffering from imbibed
poison might.
The memories lost to Aureolus had been revived like that, and Himegami, ordered to die,
avoided death like this.
However, his breathing didn’t return to normal.
He wasn’t able to take a breath; it was like instant glue had hardened in the back of his
throat.
(Calm down...Calm down!)
As Kamijou gasped for breath, he dislodged the fingers of his right hand from his throat.
(What was it he said? Bind my neck with a rope? ...No. It was more vague, more simple.
He was just saying my breath should stop and I should die, wasn’t he!?)
So he took his fingers from his throat and forced them all the way into his mouth. Like
someone trying to throw up something they just ate. His fingertip touched the back of
his throat; as the urge to vomit jolted through him, he heard the sound of glass breaking,
and his breath returned.
That all happened in a mere five seconds.

- Toaru Majutsu no Index Volume 2, Chapter 4 Part 1