You are the fire and emergency services (FES) administrator

Scenario: You are the fire and emergency services (FES) administrator, and one of your firefighters came to you stating she was having thoughts and images related to witnessing the injuries and deaths of those at a recent mass shooting. She stated that she began spending more time at work and would trade time and shifts with other firefighters to keep her mind busy. However, whenever she had free time, she would have unwanted and intrusive thoughts about the devastation of the shooting. Additionally, she was having increasingly distressing nightmares of the shooting with some of the patients who she worked on coming after her. She has been exposed to shooting incidents and carnage for several years because she was assigned to the fire station known as the knife and gun club. 

How do you believe you should handle the conversation without causing her to relive that terrible event? What actions or assistance can you provide for her? Discuss your plan of action.