I just figured this out: if you have a sneeze coming and you don't want to sneeze try and sneeze as much as you can, if you want the relief of the sneeze and actually sneeze, attempt to stop the sneeze.
In other words, try when you don't want and resist when you want a sneeze
People in the future wont believe me when I tell them there used to be a serious TV news show called Ma-butt (מבט) Literally translates as Gaze (sounds like gays)