I think I'm just going to leave this link here:
https://www.ncoa.org/article/a-common-sense-guide-to-the-common-cold-for-older-adults/
Along with this: https://www.npr.org/2011/02/07/133499190/what-ah-choo-can-do-for-you
It's pretty obvious if one follows the links to see what's been going around at our house...