Paul Karason, 58 the man whose skin turned blue made a second public appearance on the Today show Thursday.

Karason's skin is blue because he administrated colloidal silver in large quantities to himself. Karason said people are more acceptant to him after public appearances on TV have made their story known.

Karason said that he has suffered some medical issues in the past year, including a blocked artery and prostate cancer, but none of them linked to his skin.

Colloidal silver is a substance touted as flu fighter but after Karason's testimony it is proved harmful.

Click here to see a photo and a video of Karason from NBC.