The flesh-eating drug Krokodil made its horrifying United States debut two weeks ago in Arizona, but as many feared, its use has spread: there have now been three reports of the drug in a Chicago suburb.

Krokodil, already a popular drug in Russia, has finally made its way to the United States. The Banner Poison Control Center in Arizona has reported two cases of the flesh-rotting drug’s use, believed to be the first in the US. The drug is a mixture of codeine and hydrocarbons like gasoline, paint thinner, or oil that…