Don’t let your friends fly with Afrin

[Jan 7, 2015 update: seven years after I wrote this post, a helpful commenter informs us that the technique described below is called the Valsalva Maneuver. Bwana impressed!] Disclaimer: Even though I no longer live in the litigious jurisdiction of America, I feel it necessary to mention that I have nothing against Afrin (the nasal drops product) …

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