If you're squeamish, look away now.
A US lice clinic that shares videos of its most extreme cases has gone viral with video showing the graphic results of a three-year lice infestation in a young girl.
"We're going to take you on a journey of her lice removal treatment here," they explained, revealing that the scale of the problem made it a "Level 10" infestation.
"She's going to need five treatments total. We applied the treatment and everything is already dead," they said.
Then a comb is run through the hair, revealing a sickening load of dead bugs that used to call her scalp home.