The case of the girl who sneezed 2,000 times a day.
We've heard of intractable hiccups (which can be cured, FYI, by digital rectal massage), but here's a new one: intractable sneezing. This article reports the case of a young girl who sneezed up to 2,000 times a day for 3 months. She did not get better despite being seen by numerous doctors and being treated with everything from antihistamines to corticosteroids, leading the doctors to believe it was probably psychological. Or maybe she was just allergic to sneezing?
Factitious sneezing.