leave it for a few days proberly 2-3, just because its gone pale doesnt mean its dried out all the way through completely! I use to do some building work and the amount of people that would paint over the plaster asap and it ruined it was astounding.

That was to help the plaster stick better to the ceiling and to stop it drying out too quickly while the plasterers are working with the plasterIt was PVA'd before they plastered.
Let her do it.![]()