I have a REAL cure for Hiccups that works instantly, but you may need to do it each time you get them. Take a lemon wedge, squeeze it a little, and sprinkle some sugar on it. Then douse the lemon wedge with some Angostura Bitters (a non-alcoholic bitter ingredient for some alcohol drinks that can be found at supermarkets). Take the lemon wedge, bite it, suck the juices out, and swallow (It will be a little bitter!). INSTANTLY your hiccups will be gone. When I initially found out about this formulation from a waitress, I had hiccups for about the prior 8 hours. I was starting to feel sick and nauseous from them. When I swallowed the juices, the hiccips went bye bye IMMEDIATELY. I was stunned! THIS REALLY WORKS!
Funny,,,,,when the waitress asked the Bartender for the bottle of Angostura Bitters, he replied "Does one of your customers have Hiccups?".
Best of luck with this issue!