Below is a link to an article about a 12 year old girl who can't stop sneezing. Its so bad she sneezes up to 20 times a minute.
I couldn't help laughing at an "expert's" statement:
Its Captain Obvious to the rescue!One expert believes she is suffering from a syndrome known as 'machine gun sneezing', in which victims sneeze incessantly.
Ah-ah-achoo! The girl who sneezes 12,000 times a day leaving doctors baffled | Mail Online