Here's one medical issue that's nothing to sneeze at.
A 12-year-old Virginia girl claims she can't stop sneezing -- sometimes as much as 16 times per minute -- in a condition that has baffled her family and doctors.
"It's frustrating," Lauren Johnson told ABC's "Good Morning America" today, sneezing four times before uttering that sentence.
Lauren's prolonged fits of sneezing began two weeks ago when she was recovering from a routine cold.
Now, Lauren can't go to school, eat normally or even sleep.
"It's pretty hard," she said. "I have to kind of be physically exhausted before I can because I just sneeze and sneeze until I eventually can hold off for a couple of seconds before I can go to sleep."
Lauren's mother, Lynn Johnson, has taken her several doctors, but no one has been able to help.
"Their heart goes out to her," she said. They really want to help her. I just don't think anybody knows how."
Johnson said the most difficult part is not being able to "tell my daughter it's going to get better, in a week or in a month or in a year."
Dr. Clifford Bassett, an allergist, told ABC News that he thinks Lauren suffers from a condition called "machine gun sneezing."
He said that the condition is rare, but can be triggered by allergies or abnormal growths in the nasal passage that causes the rapid-fire sneezing bouts.
"People who have sneezing where it looks like they are blowing a trumpet or violin or machine gun," he said. "Basically a pattern of sneezing, repetitive sneezing, annoying sneezing."