"That keep her from her rest.—Cure her of that."
The last her was supplied by 2nd folio. See Introd. p. [55].
"Cleanse the stuff'd bosom of that perilous stuff."
In the usual way, 'stuff' seems to have arisen from 'stuff'd.' I read matter.
"Shall expel
This something settled matter in his heart."
Ham. iii. 2.