I painted a small room with a dark yellow satin emulsion about a week ago. It was a disaster because no matter how many coats i put on it, it was never even and the roller marks were very obvious. So I bought new lighter paint and painted over the mess. All was going well ontill I noticed small blisters appearing and now the walls are covered in these. What can I do now. I was thinking of wall papering but is this wise considering the wall have so many small blisters. Would the paper even stick well? I'd appreciate advice on what my options are besides knocking down the house. Thanks.