one of my friends (female-24) is suffering what I think is PTSD. I have no direct contact with her but here is what she told me so far and I have no clue what to do. hope you guys can help to help her.

She had a dream last night a terrible one, in which she saw herself being killed by someone by cutting her throat(i can not even imagine such a dream it is so horrible). she could not get up from bed after waking up. she called for help. Now she is just crying. please help me.