Guys have you sniffed water and then blow your noseto nullify bad smell from the nose? Try it, I think it works...but using regular tap water I think doesn't help/makes it works, I'm guessign because it contains chlorine. Try natural spring water, and don't use ozonized water because when I used it, it hurts a bit.
Sniffing water is simple...pour some water on your palm, bring it up close to your nose and sniff and then blow your nose.