★★★★★
Wow, this really worked for me! I had hiccups this past weekend. Whenever I come down with them I tend to get them multiple times (4-5) for the rest of that day. After reading this post and getting them twice later in the night, I took a quick capful of Apple Cider Vinegar, and instantly my hiccups ceased! I got them again about an hour later and again took them down with the vinegar cure!
Malt Vinegar
★★★★★
My mother always gave me malt vinegar for hiccups, when I was a child, and it worked immediately every single time. Assuming it's available, these other weird and wonderful remedies (which don't always work anyway)can't touch vinegar for effect. I believe it works on the vagus nerve, and affects the diaphragm in some way.