I've heard that sinus rinses are healthy. Sadie's got a doozy of a cold right now, so anything I can do to avoid catching it would be good. Unfortunately I don't have any way to tell Mom and Dad what I want, so I have to do it myself. Milk works well as a sinus rinse, even when it comes from inside.
I may be a little too enthusiastic, though. During morning diaper change today I rinsed my sinuses all over my pajamas, my sleep sack, the changing pad, and the wall. Mom just sighed and said something about not wanting to ruin her perfect record of at least one load of laundry every day anyway.