“They shaved my head and took layers of skin from my scalp. To heal the wounds, I was in a hyperbaric chamber for 90 minutes twice daily for four days. It’s claustrophobic. One of my first nights home, I watched ‘Iron Man’ with friends. In the scene where Robert Downey Jr. comes out of the cave with a blowtorch, my whole body cringed. That night, I had a nightmare someone spilled fuel on me and was trying to light me on fire. I woke up and thought, ‘Oh my God, this is going to happen forever?’”