We tried to summarise our personal experience showing that a high percentage of psychotic post-partum breaks may be treated in a day unit using tritherapy. We described the advantages for a collective institutional therapy, the tritherapy, especially regarding to the treatment of schizophrenic crises. The treatment we propose for the post-partum psychotic crises in a day unit would ease: 1) The preservation of part of the patient's autonomy which would valorise her. 2) The facility for supervising the institutional work, especially for nursing care so import in the institutional casing of the mother-baby pair. 3. Possibility to integrate the husband in the treatment. We did notice in post-partum schizophrenic breaks the influence of the husband's attitude on the mother's illness at least in a certain amount of cases he puts on the mother's back his own ambivalency regarding to the child. This attitude in the natural dependency of mother hood has the same destructurating effect as a double blind.