OH. MY. GOD.
This is stuff nightmares are made of.
Apparently there are thousands of microscopic mites that live on your face and they spread from hugging.
The demodex mite is a microscopic arachnid that lives on human skin - specifically, in our pores, surviving on the waxy sebum they produce.
It's estimated that at any given time between 1.5 & 2.5 million mites are living on our skin. The life span is only 20 days, but....
*I'M SO SORRY*
......They can lay up to 24 eggs after mating.