Well, here we are again with another tale of why
we shouldn't just turn our heads when anti-science rears it's ugly head. The long and the short of it: people are claiming that Zicam, the nasal spray that is supposed to end your cold sooner, is destroying their sense of smell. I have so many feelings about this, that I scarce know where to start. How bout a primer on what Zicam mostly is.
There is a category of treatments (not to be confused with medicine, though most people, even those who administer it do, confuse the two) that involve basically no active ingredients. The classical recipe for making a homeopathic remedy is to take a little of whatever is deemed to be the medicine, or in most cases toxin, and dilute it in a certain amount of water. One then shakes the container along three different axes, i.e., up and down, left and right, front and back, then removes a small amount, I think a tenth, and dilutes it further, repeating the shaking. The mixture is diluted so far that the final dose will likely contain no measurable amount of anything but water. This is supposed to cure all kinds of ailments, depending on what was dissolved in the original solution.
The proposed mechanism for this cure is that the water retains certain properties of the soluble with it's water-memory. Basically, it's magic. Pharmaceutical medicine involves traceable, identifiable chemical reactions and their effects on biologic creatures. They will tell you that dose is everything.
Since the active ingredient in homeopathic medicines is nil, the FDA doesn't even evaluate them under normal circumstances, and they don't have to be controlled. This is why we have a problem with Zicam.
My guess is that we'll find that some other ingredient like a preservative, or a minty fresh additive is the culprit in the Zicam complaint, though people smarter than me, or at least more educated and familiar with human bodies, have pointed out that it could also be the colds being treated that are messing with the olfactories.
Or I guess they could just be a bunch of people educated on the ineterweb trying to cash in on a very few people's hard luck and legitimate problems.
At any rate, none of this would be necessary if we had to critically evaluate EVERYTHING that claims to have any effect on our persons. The way I see it, if you want to claim that your concoction does X, Y, or Z, YOU should be responsible for ponying up the cash to test it in third-party double blind experiments, and publishing those reports in public record and peer reviewed documents. Hopefully the crowd of educated, saavy, skeptical, critical thinkers who have humanity and what's best for people at heart would win out over the voices of people like Dr. Oz of Oprah fame, Prince Edward, and all the people who still believe the tooth fairy left them that dollar.
