Virus plagued

This thing used to be a high-ranking virologist, but after a virus found preserved inside of metal ores in deep under frozen water caves, called the Hyphera virus, which causes large teal blisters, of which develop mass amounts of iron in the skin, causing Argyria, or grey skin, as well as well as in the bigger blister bunches, growing out long tentacle like nerve tendrils, able to be controlled. Pus forces out of the eyes and blurs their vision. The everlasting pain causes them to go insane and turns them into, while being somehow alive and conscious, a real life zombie.