Nasal probiotics – The nose, it seems, is protected by bacterial guards | Science & technology | The Economist

January 16, 2021

https://www.economist.com/science-and-technology/2020/06/11/the-nose-it-seems-is-protected-by-bacterial-guards
I wonder if eating the lactobacillus in yogurt provides some of this protective effect to the sinuses — from bits of chewed food that get from the mouth to the nose