Hallucinations
One cannot argue or convince someone experiencing a hallucination or paranoid delusion that their perceptions are not accurate. One effective strategy is to acknowledge to the person that what they are experiencing must be extremely stressful. This opens the door for a recommendation to seek treatment and a medication evaluation for stress and anxiety rather than for a “psychotic” disorder. This engenders trust and does not create a confrontation.
There are many types of hallucinations, involving all of our senses.