On further investigation I discovered her nightmares will link to her ex-boyfriend who brought dolls with dead fetus spirits into her bed room. She told her ex-boyfriend to remove the dolls after they broke up the relationship.
I know that salt is used in catholic church- salt is added into holy water. So I gave her salt in bottles and placed it into her bedroom. She came back to tell me that the nightmares still continue to tortures her.
I then bought a large white candle and chanted the name of Jesus over the candle. Gave it to her and instructed her to light the candle and place it in her room when she was about to sleep. The next day she came to me so excited telling that she had no nightmares.
Praise be the name of Jesus Christ. Philippians 2:10-11 " that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father."