I have never cured my case of random hicups.
But when I was a child I decided that it would be impossible to sneeze and hic-up at the same time...
So I played in some hay, which I am highly allergic too... And found out, It doesn't stop the hic-ups they just take turns like a Tag team...
My father used to think scaring cured them... I think that was just for his own amusement...
Never tried doing a handstand. Being one who stays on my computer 24/7 I don't have enough upper body strength to do one
EDIT!!!!!!!!!
My grandmother a few months ago was talking to me while I had them. and she said "Tony why would you say that to your father?"
I was puzzled and asked "what did I say?"
She said "You know what you said". In the most disciplined voice....
I was even more puzzled and went "Grandma I don't know what your talking about!"
She said "Tony don't lie to me its bad enough you would say that to your father."
Then I said "Grandma what are you talking about!"
As she replied "Cured your hic-ups didn't I?"
So getting someone mad confused and worried at the same time is the cure
Apparently that is a old trick back up in Michigan... I don't know LOL