From a literary material, “Le Journal” of the novel La Part de l’autre of E.-E. Schmitt, the article proposes an interrogation of the repatriation of the figure of the monster in the human condition. The resistances against this operation will be examined and put compared to the work of the clinicians having to deal with the aforementioned monsters. The concept of " pathique contagion " will be examined to show in what the fact of “traiter” could lead “à être traité de”, offering then the possibility to understand the mutual echos between the diverse meanings of a verb which animates the therapeutic devices and sees itself conjugated by those which support them.