Inside the Little Plastic Castle

I use a similar setup, the NeilMed Sinus Rinse kit, which comes with these nice premixed packets. It calls for washing the bottle after use, then sticking it in the microwave for a minute, which steam-sterilizes it. And I use either bottled distilled water or tap that I've boiled for 5 minutes.

I use it at night to rinse out any pollen/pollutants I've picked up during the day, and it definitely helps me breathe better. I also have way fewer air-pressure-triggered headaches, too.

The only thing is that since water goes ALL up in there, sometimes not all of it drains out, and then later I'll tilt my head a certain way and it'll come out then. But I usually do the rinse before I shower, so if something drains I can just . . . get rid of it.