Hiccup Cure

This is a picture of Emilie and me trying to stop Anne's hiccups. I read somewhere that if you stimulate the vagus nerve on the forehead when someone is hiccuping that it will trigger the diaphragm to stop spasming. The first few times I did it to Emilie and Anne it worked; although, now when I try it doesn't work. It always seems to work on Anne though.