It is impossible to stop or to control dementia hallucinations and delusions. They are simply the result of an impaired brain trying to make sense of the world. These are very real to the person experiencing them and there is nothing you can do to eliminate it or prevent it from happening. However, understanding how to deal with dementia hallucinations when they come up can put everyone at ease. Always remember the three R’s: Reassure, Respond, and Refocus.