I have tried showering chemicalsss heatt with drier and steam iron nothing killing them they are small white and cant be crushed look like they have wings they are very small I cant sleep anymore going on for 5 months this when I take shower they still in my hair I have used nit comb as well they refuse to go away 7 months ago I had flees now there gone these are white and different I think I'm going insane I tried to crush one on my hand I could just about aside it and crushed it moved my hand and it hopped away or flew away I don't know like there invinsible and they can move fast if eneded