Machine Gun Sneezing
ABC News on November 11, 2009 aired a story about a 12 year old girl with an unfortunate condition called "machine gun sneezing". Apparently, she sneezes up to 16 times a minute all day except while sleeping and started after recovering from a mild cold.
To be frank, it's a condition I've never seen before.
Per an allergist interviewed for this story, the condition is extremely rare and "can be triggered by hundreds of causes, including allergies, sinus problems, or growths in the nasal passage."
Read more here. A video of the report can also be found at the link.
This girl was eventually found to have a diagnosis called PANDAS (Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcus)! Read more here.