For me, lying should not be something that is done at first. You have to first work through different approaches: basic communication, behavioural intervention strategies, emotional validation and life history. If this doesn’t work, then lying can be used as a last resort.
It is important to know the person, their life history and the significant events in their life, both positive and negative. A regressive leap takes us back to certain pivotal periods in our history and provokes certain emotions. The caregiver must be aware of this and try to validate: where does the person affected stand? Is the person feeling calm, in which case a lie would not have much impact? Or do they feel a great deal of anxiety in the case of hallucinations? Lying in this disquieting situation, which is their reality at the time they are experiencing it, is not advisable; rather, the person should be “brought back,” reassured, without being confrontational. It is a matter of evaluating what is problematic and dangerous, compared to another situation in which a “little” lie will not have major consequences.