How To Blow Your Nose
http://www.nytimes.com/2009/02/10/health/10real.html
Answer: one nostril at a time, or not at all. The double blow just makes the pressure worse.
http://www.nytimes.com/2009/02/10/health/10real.html
Answer: one nostril at a time, or not at all. The double blow just makes the pressure worse.