Children of patients with psychiatric disorders are at higher risk to develop a psychiatric illness. In addition, phases of crisis and hospitalization of the parent are often traumatizing to the children, especially during childhood. Although a specific offer to face these issues is compulsory in some countries, such is not the case in Switzerland. In this paper we describe the implementation of a special offer for children of parents with mental illness (Famille +) in the service of general psychiatry at the Department of psychiatry of the Lausanne University hospital in Switzerland. We will also discuss the development and implementation of the Joint Crisis Plan, a collaborative tool where psychiatric patients and clinicians define the strategies that should be applied in case of crisis, which strengthens the empowerment of patients and their participation to decisions about their treatment.