I have never heard of a case of Argyria derived from topical applications personally and so I'll repeat what I stated earlier and say that this won't likely happen, and if it did, wouldn't likely ever be systemic. - also mentioned.
That said, I can testify to the fact that Argyria can and will occur from what we'd call properly made CS based on the vast number of photo's and ongoing communication that I've had with this individual. To which I'd add, has most definitely proven to have developed Argyria.
As for proof and help, I'm afraid this community has proven to be quite the opposite on that particular matter. However, the fact remains that Argyria is very much a reality and that it can be contracted by drinking too much CS. Which is a fact that has been confirmed by others here as well.
Having said all that, it appears as though you've misinterpreted my determination to share such facts as an attack when nothing could be further from the truth. As it turns out, I am a huge fan of Colloidal Silver and remain confident that is not only, perfectly safe when taken properly, but also a vital part of what we'd call the alternative health industry. (if one could call such a thing)
However, as it stands, I feel the need to caution others against the effects of long term exposure to CS under pretense that Argyria is not a factor with what we'd call properly made CS. To which I'd add, everyone deserves the right to hear both sides when making informed decisions on the risks AND benefits associated with the use of CS. Which I believe should stand regardless of our sensitivity toward matters.