During the summer I took Molly to the vet for what turned out to be a reverse-sneeze!
It scared the living daylights out of Dad and me...we really thought she couldn't breathe. The vet examined her carefully, as he always does, and explained the "reverse sneeze" to me. He said that Molly, being the digger and snuffer-of-dirt that she is, could possibly have inhaled some stuff...the sneeze was the result.
She still sometimes does it after she's been running in the cold, and snuffling and eating snow or uck!
MUD...she and Billy both did it once after they had romped this morning.
I agree with Laurie that calling the vet will be a good way to make sure. (Or, I could do it for you tomorrow if you can't get to a phone at work)!
So...if anyone out there who is NOT
Mary's mom agrees and/or disagrees...well, you know how it goes! Love you-u-u-u-u-u-u