I'm a great sneezer. When I'm out in public I try to cover it up and sneeze as lightly as possible, but when I'm alone I let it out full force, making a great noise. Occasionally I do get muscle pain afterwards because of the great force of the sneeze but the pain has never been great enough for me to stop physical activities.
But since Kevin Pillar is a baseball player, more specifically a Blue Jays player, he's out for 10 days with a mild (grade one) right oblique strain due to sternutation. It is a mild injury but Pillar, who is vying for a spot on the 25-man roster out of spring, is probably worried about losing time to showcase his skills as this would lead to increased playing time for rivals Caleb Gindl and Dayan Viciedo.
If you recall, Colby Rasmus injured his left oblique sneezing a couple years ago after sneezing while Ricky Romero suffered a strain to the his right oblique due to a sneezing incident, a few weeks into his major league career.
I guess this is another reason for the Blue Jays to play on artificial turf: no pollen.