The situation you described is that a person has serious psychological problems because of being scared, which brings some abnormal performances.

So, my suggestion is:

1, let the patient calm down physically and mentally, and suggest that the patient do touch hypnosis. Through touch hypnosis, patients can achieve the effect of physical and mental peace through mental release;

2, need careful care, care, tolerance, etc. Family members also cooperate with some psychotherapy, so as to slowly get out of the shadows;

Communicate with him more, care more about her, do some pleasant things and take her to outdoor activities. Or you can find a psychiatrist to recuperate.