Hi, Hope someone can help. I recently stripped the wallpaper on one of the walls in the living room (I noticed through the wallpaper, some curves sticking out of the wall underneath the wallpaper) On removing the wallpaper, where the curves where the plaster has crumbled underneath and come away from the wall. It looks a eye sore now!! I have 2 holes a few mm deep where the plaster has come away (you can see a grey concrete type plaster underneath) Some of the plaster looks in good condition, where other parts it looks wet and damp. The plaster has mainly come away from the middle of the wall. Any suggestions? Many thanks