Can someone please advise me as to what I need to do to decorate a wall where the plaster has blown. I have recently bought an old property and have spent a fortune bringing it somewhere up to scratch but have now run out of money. I can't afford to bring a plasterer in. I've had lots of confusing recommendations as to how to decorate this wall but am now totally confused. Some say line it and then paint it, others have said just wallpaper it and hope for the best and others have said just paint it.
Can someone please tell me the correct way.
Many thanks.