Need Help

My niece has been having experiences for several months now.  While she is sleeping and even awake she feels like she is being experimented on by aliens.  Everything she says is so in detail it is scary.  She sees them, they talk to her and she knows everything they are doing to her.  She not only needs help understanding what is happening to her but I think she could give important information.   She needs someone to take this serious.  I’m desperate for her to find help.  She has talked to doctors, therapist, had a brain scan and now going to have the brain waves tested.  Is it possible this could be a neurological problem?   The doctors have just put her on antidepressants, antipsychotic medicines and no one seems to take her serious.  I’m so scared for her.  If someone responds that thinks you could help her, please give contact information so she could talk to you.  I will not post any more information about her on this site.  I’m looking for her help, that”s all.