If I were you I'd snort it through a straw first like the directions say before I mixed it with distilled water. That Herbal Snuff is mighty powerful stuff, I think you're gonna be surprised just how great it works. I didn't even know I was stopped up until after I snorted. After I did it I found out what clear sinuses actually feel like lol.
On the off chance snorting it doesn't clear up your problem then you could mix it with water and try it that way.