Demodex mites are tiny eight-legged parasites that mostly live in hair follicles and oil glands on your face, neck, or chest. As alarming as this may sound, they’re generally harmless.

Doctor Shares Horrifying Scan of Patient’s Legs Filled with Parasites After They Ate Undercooked Pork. ... It can cause lumps under the skin and if it spreads to the brain or spinal cord, ...