Papa smurf

We all feel blue once in a while, but some people actually are blue. This rare condition is caused by chronic ingestion or inhaling of silver. As a consequence, silver particles accumulate in the skin over time and darken with exposure to sunlight, resulting in an irreversible blue or gray skin tone.

Argyria or argyrosis is a condition caused by excessive exposure to chemical compounds of the element silver, or to silver dust.The most dramatic symptom of argyria is that the skin turns purple or purple-grey. It may take the form of generalized argyria or local argyria. Generalized argyria affects large areas over much of the visible surface of the body. Local argyria shows in limited regions of the body, such as patches of skin, parts of the mucous membrane or the conjunctiva.

In 2007, press reports described Paul Karason, an American man whose entire skin gradually turned blue after using colloidal silver made by himself with distilled water, salt and silver, and using a silver salve on his face in an attempt to treat problems with his sinus, dermatitis, acid reflux and other issues.Karason died on September 23, 2013, after suffering a heart attack and stroke, which were unrelated to his skin discolouration.