Black and white on lesions??

Can any one tell me what is this black stuff (w sometimes a bit of white around) my open wounds?? I have holes around my corner of mouth, neck, fingers, toes and when I wake up in morning caked with black (really black) and then through out the day also..it is not dried of blood.

I also have these weird PAINFUL little clear with a skeleton critters that I think look like sea monkeys or shrimps in cuts. they are fast, sharp with sharp extremeties and cause extreme pain. EXTREME..unable to use fingers hands today as FULL of them under nails around nails on fingers...they are quick to move from one finger to another if I touch fingers to toes or mouth etc. WHAyt ARE THEY and how do I get rid of??? I have soaked in bleach and warm water but doesnt seem to work any more..never mind that my fingers are raw and open all over so hard to take..

Also..are they able to live in carpet??