Suggest Treatment For Hallucinations And Lack Of Sleep

i want to ask a question about my 21yr old niece. after a domestic problem about two weeks ago, she started crying continuosly, she gets no sleep at nite. a week later we suspected cerebral malaria. she was taken to the doctors but he said it isn't malaria. for the past five days, the problem has developed to another level. now she barely recognises anyone. she claims she is seeing a big rat in the house, but no one else can c this rat. she now talks all ady all nite. without sleeping tablets she gets no sleep. for a few seconds, she would have a proper conversation, and then she would go to her dream world where she seem to see things that no one else sees. we are very worried about her