Today's real-life horror comes from the New England Journal of Medicine. There we learn of a traveler who suffered an unusual infection. The invader wasn't a microbe, but a worm, and the infection site was the person's face.
A physical examination showed a superficial moving oblong nodule at the left upper eyelid. A parasite was fixed with forceps and removed surgically... The parasite was identified by means of a polymerase-chain-reaction assay as Dirofilaria repens, which is a zoonotic filarial nematode.
You can detect D. repens when it moves close to the skin. One medical article offers this terrific name for that event: creeping eruption.
She documented the story through selfies, like so:
Infocult: reminding you that nature is Gothic.
(thanks to Steven "Twitchy Eye" Kaye)