The symptoms: The patient had gotten a red cross tattooed on his neck, just below his voice box. But three months later, the ink vanished. The man developed lumps on both sides of his neck, which grew ...

A Polish man had an extreme allergic reaction to red ink in a tattoo on his arm, causing all his hair to fall out, his sweat glands to shut down, and his skin to develop vitiligo. The case adds to ...