A.S.
This may sound crazy but it worked with our son when he was afraid of ghosts. We told him we were going to the store to get him "ghost spray". I took a squirt bottle, filled it with water and made a label for it. We told him only to use it if he was sure a ghost or monster was in the room or approaching. We also told him that ghosts can smell it and won't come in when they know you have it. It worked like a charm. He kept it next to his bed and sometimes we'd spray it around before he went to bed. Some mornings he'd wake up and tell us he scared off the ghosts! I think you can try some alligator spray! Good luck.