Sternutation is a noun that refers to the act of sneezing. 

The Latin word ‘sternuere’ (stern you AIR ay) means ‘to sneeze.’ After a few modifications, this word moved into the English language in the Late Middle English period. Here’s an example of sternutation in use.

After my eye surgery, the doctor told me to avoid sternutation if possible for a few days. As you can imagine, it was quite a challenge. I mean, how do you avoid something as natural and inescapable as a sneeze?