Paul Karason is feeling blue - literally.
The US man used a silver extract to treat a skin condition. But it ended up changing the colour of his face, leaving him with a deep blue tinge.
The 57-year-old was fair-skinned and freckled 14 years ago, until he developed a bad case of dermatitis caused by stress. When it got so bad that the skin on his face began to peel and crack he began to use a substance called colloidal silver, he told US television.
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The product is said to be made by extracting silver from metal into water with an electrical current before it is drunk.