this is not IgNobel but false

The 2016 IgNobel prize winners have been announced and the medicine prize went to "Christoph Helmchen, Carina Palzer, Thomas M√ľnte, Silke Anders, and Andreas Sprenger, for discovering that if you have an itch on the left side of your body, you can relieve it by looking into a mirror and scratching the right side of your body (and vice versa)."

But I just tried this out and it did not work. I had a random itch on the right side of my face, went to a mirror, looked inside it and scratched the left side. The itch persisted until I scratched the right side.