Hip
Senior Member
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Okay, I didn't think of this yesterday but for people who want to try this there is an easier way to get the solution at least partially on the nasopharynx region. It's pretty easy--you just swallow the solution while looking at the ceiling. (Of course make sure it is a solution that can be swallowed.)
That might work, but note that in one paper, Dr Hotta suggests the mechanism of action of epipharyngeal abrasive therapy (EAT) may involve a combination of the anti-inflammatory effects of zinc chloride solution, plus a mechanical abrasion from prodding the cotton swab into the nasopharynx, which promotes blood flow and local bleeding to clean out the nasopharynx.
So the mildly abrasive effect of the cotton swab prodded into the nasopharynx might also be important.