jimmylegs wrote:as for zycam, you mean this? sounds terrible :S
"Zicam is a branded series of products marketed for cold and allergy relief whose original formulations included the element zinc" weird - wonder when that changed.
When sprayed up the nose, zinc ions induce the loss of the sense of smell. There was an interview some time ago on NPR, perhaps it was the show "This American Life," where a woman described her experience with this. She said that in the absence of a sense of smell, that her brain manufactured scents that were putrid, i.e., like decaying flesh. Her sense of smell eventually returned after several months. If I remember correctly, she wrote a book about her experience.