Can not say. It is a perfect example of the effect microscope. You can not make a reference to something outside the image with the data in the image.
For example, if those items are on your feet may come from a tablet or a laptop or even a Cell Phone that fry skin through a metal grille. You slept with that device on your skin? Tell exact position on the body of those wounds. We must know the location of that dots to make some comments. They look like the burn.