There are many ways to deal with a scared child. There’s the nice way where you comfort them and tell them that nothing bad will happen. There’s the “I’m going to look so cool in their eyes” way where you go into an empty room with a bat and pretend to beat the living crap out of whatever is scaring them at night. Then there’s the super awesome way where you take advantage of their fear to scare them some more.
For the very last option, please take into consideration how Redditor calve12 dealt with his daughter’s fear of getting sucked into the computer after she watched Tron. Instead of telling her it was just a movie and none of it was real, he went on to take some pictures with his face against a window. He then turned that into a lovely wallpaper that would surely have his daughter believe that he was stuck inside. She’ll be traumatized for a long time and hopefully won’t become addicted to the internet like the rest of us.
Parenting: you’re doing it right.