I went into a room today and saw that this had happened to the cornice.
I have no plastering experience but some general DIY experience. Is it feasible to plaster it oneself, and if so what tools should I use?
I am also interested to know what would cause this sort of thing to happen. Is there a risk that it could happen again?
What would happen if I just left that area unplastered for 4 months? The reason I ask is that this house is being renovated in 4 months anyway, and so it would be convenient if I could leave things until then.