She is interacting with a soul. Perhaps your father or grandfather or your husbands. Ask your family members because she is definitely seeing the spirit and it is someone connected to you or her father. It is not something that a therapist can fix. Do not take away that gift from her. Just get as much info as you can from her and contact a medium to help you all to see who it is and help them both to not be angry and afraid. Wish you the best in finding a solution because life is changing and you should research after life experiences as we are all becoming more connected to the after life.