[Enterprise]

"Her face was covered with black sores"

Those aren't necessarily "sores." Meth, like cocaine, constricts the blood vessels. Over time, this leads to the collapse of the vessels and blood cannot flow. Those sores could be dead flesh.

"meth use constricts the blood vessels and cuts of blood oxygen to EVERY tissue of the body."

Link

[trisham]

It's pretty scary stuff:

These images are somewhat tame: for more, google "meth".