"Kill it with fire" usually means mites. I'm not seeing any in the picture, unless there are really tiny ones around the snake's eyes that just aren't showing up due to my monitor resolution.
If you have no PAM or Reptile Spray on hand and you want to start treating today (assuming the OP has a mite problem), a 2-oz (59 ml) bottle of the NIX cream rinse for lice mixed with one gallon of warm water can be sprayed in the enclosure, paper towel substrate, and hides. Do not spray the water bowl or the snake!!! Once everything has dried put the snake back into the enclosure along with a clean water bowl and fresh water. The dried permethrin residue is enough to kill the mites during the off-snake part of their life cycle.