[Therapeutic negotiation in psoriasis].
The patient based medicine joins together all the medical techniques making possible to adapt to a particular individual the scientific knowledge obtained through the study of broad populations. It rests on four successive phases: questions, explanations, negotiation and prescription. The purpose of these successive phases in the relation doctor-patient is to identify and take into account in the therapeutic decision, all the facets of the personality of the patient, the pathologies and treatments associated, the therapeutic experiments already carried out by this patient and his personal evaluation of his quality of life and of the impact of the treatments and the disease on this quality of life. These techniques are essential to efficiently treat chronic diseases. Their progressive development represents a therapeutic revolution resounding on the teaching of medicine, the development of new drugs and on the rights of the patients.