On reading the headline and seeing the pic, my first thought was dioxin, the toxin used against the Ukrainian president Victor Yushchenko, which caused ugly growths to erupt on his face.
Scientists believe the skin growths were his body's defense mechanism against the poison and probably saved his life.
Roger Stone's sometime partner in the political advice business, Paul Manafort, famously did lucrative work for Yushchenko's opponent, Viktor Yanukovych, who currently resides in Russia, Ukraine having charged him with high treason after the revolution of 2014.