In schema therapy theory, there are typically two parts which block the wotk: A Punitive Caregiver/Critic mode and a Detached/Avoidant/Angry/Whatever Protector mode.

For the first, my T and me basically "banish" it from the room because the theory is that it's an introject of abusive caregivers, for example. My therapist will do things like figuratively open the door and figuratively throw it out.

For the second, we've done empty chair work (my "healthy adult" mode vs the protector mode), or T talks with me when I'm in this mode because the theory is that part/mode wants to keep us from being harmed and so blocks the work.