WI: Blue Skin as Fashionable?

So I learned of a guy named Paul Karason who drank Colloidal Silver and put it on his body for health reason, and turned his skin permanently blue.

Apparently, Silver was used for thousands of years for its anti-bacterial properties until penicillin was developed. And, since people were prone to some weird things (the Romans used lead in everything likely to the point where it possibly poisoned their brains, and the Victorians were prone to some weird stuff fashion-wise, among others), my question becomes this: What if people drank/used colloidal silver the same way this guy did, for health benefits, to the point where blue skin became a common? Not a majority of people, of course, but a visible minority? How could this occur and what would be the effects on history?
 
Maybe Aristocrats and Royals use it, the whole blue blooded thing turns to blue skinned to give them an even greater degree of separation from non-nobles.
 
A priestly caste might use it, and if that kind of silver was widely available for consumption it's possible it might replace (or augment) tattooing in some cultures.
 
It's certainly not ASB. Consider the following:

"Hey guys. WI it became fashionable in the West for women to wear garments that constrict their breathing and/or push their organs up into their rib-cage?"
 
A priestly caste might use it, and if that kind of silver was widely available for consumption it's possible it might replace (or augment) tattooing in some cultures.

Well, then they'd be blue tattoos on blue skin. The contrast would be terrible :D
 
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