The story they wrote is called, "Hole." Source
Wow, I completely missed the story before. Some of the stories posted by this creator on pixiv are very good. Even just reading them via a machine translation is quite exciting.
Another user I found with some incredible sneeze stories is this one:
https://www.pixiv.net/en/users/82633111. Some of their ideas they turned into a series. Like the series about a magical smartphone app "Linksneeze" that lets you tickle anyone's nose into sneezing by entering their name in it (sort of like a Sneeze Note instead of a Death Note). Or the "It’s time to Sneeze!" series about a someone who uses a magical stopwatch to stop time, mercilessly tickle someone's nose, and then unstop time to watching them sneeze helplessly. There's even a quite elaborate fantasy choose-your-own-adventure story where every ending results in a massive sneezing fit. If you can read Japanese, or are willing to suffer through a machine translation, check 'em out.