How does one repair a hole contained by an Artex ceiling? Just a small hall, approximately 4" x 4", cause by flooding, ...

Just a small hall, approximately 4" x 4", cause by flooding, will I just put together some Polyfilla plaster (it's a rough surface, jaggy type of Artex) and sort of craft peaks within it? But there's a small hole that needs nourishing first before I can put on the up to date plaster/repair covering and I need to own something to fill surrounded by the hole so that the new plaster/Pollyfilla can stick against this.
Answers:    of late put some paper screwed up surrounded by it first the proper way would whip to long to explain
wegg is bang on