Register for a free account on this website to look at the psychological first aid online module so you understand about the topic.  Also I have uploaded two papers I have written to provide some background.  You are going to use the eight core strategies highlighted in my paper to help you in creating this treatment plan.  If you have access to a university library for ebooks this book may also help.  Disaster Mental Health Counseling : Responding to Trauma in a Multicultural Context by Mark A. Stebnicki