Young Moishe would wake up every night and run into his parent’s room. He kept having nightmares and was afraid to go to sleep. This continued for more than three years. In desperation, the parents took Moishe to a psychologist, but it didn’t do any good. In fact, the nightmares were getting worse, and it was affecting the child’s health. He wasn’t able to concentrate on his studies and began showing signs of great nervousness. The parents even brought him to a psychiatrist who gave him some medication that proved useless.
A friend of theirs suggested that they have their Mezuzos checked out. “But we already have.” said the father, “and they’re all okay.” It was months later that the father decided to have them checked again. They were shocked by what they found.
A new Mezuzah was put on, and Moishe hasn’t had a single nightmare since. This story left the parents in total shock, and to this very day they are grateful to thesofer for having found the mistake.