I don't know how long it has been since the seizure but, kids are smarter than we give them credit for. Perhaps finding a good way to explain what happened, how it happened, and what you do to prevent that, then encouraging him to make the decisions (with guidance) to prevent it will give him back a sense of control. Also Mix in spray bottle one part water and one part vanilla seemed oil. Lable seziure prevention and spray him before bed. it works for monsters too.