add a little powdered mustard spice to your coconut oil and put over whole body. powdered mustard kills the mites instantly but it can burn in too large amounts like tea tree oil use carefully. You can add it to any cream, shampoo etc. but only mix up enough for a couple of days on its own as it changes consistency of carrier. Keep already mixed bit in fridge makes it last longer. Mustard needs to be kept moist to work. Good luck. :)