The aim of this study is to investigate of the implementation of an autonomous consultation with a nurse pain specialist for chronic pain patients has an influence on the behaviour towards the chronic pain. The trail will be done with patients that has planned an infiltration in a pain centre. Furthermore the pain intensity and patent satisfaction will be investigated as second outcomes. During the consultation there will be explained what the patient can expect from the treatment in the pain clinic. What the patient expect from the infiltration will also be surveyed, so that it can be adjusted if necessary. In the end of the consultation there will be a brief explanation of chronic pain and the physiology as well als the different factors that have an influence on it. This study is a monocentric randomised controlled trail of 172 participants, with an equal allocation (1:1). To collect the data there will be three different questionnaires for both groups. The first is a baseline measurement. The second will take place three weeks after the infiltration and the third ten weeks after the infiltration. This is in order to see if there is an evolution in the outcomes during time.