Harris spent yesterday sneezing. He had the sneezles.
Today, he is better.
I remembered calling our vet a few years ago when Possum had been sneezing a lot. She laughed at me and told me to vacuum. I did, and Possum was cured.
I planned to vacuum today, and Harris stopped sneezing before I even got started, which suggests that imaginary, or wishful, vacuuming works on cats' noses, too. Great news.