I have sneezing fits all the time. The only thing that works for me is to keep my mouth wide open, like at the dentist, when the sneeze is coming. You (I) cannot sneeze physically like this, so then it's just a matter of weathering the 3 or 4 urges that come before the fit stops.
If yer on a date you might want to step away from the table before gaping like a cod fish and spreading tears and snot everywhere while this is going on... some women find it less than attractive.
The fast ways recommended to stop sneezing are avoiding pets, using an air filtration device, and looking for and treating underlying causes. For more information on how you can stop sneezing fast, follow the following link http://www.sneezing101.info/How-to-Stop-Sneezing.html.