For a 'hairy' effect, press some shreds of Wool Crepe into the Derma Wax.
To create an 'open wound', the Derma Wax construction has to be 'cut open' with the sharp side of a Derma Wax spatula. Lubricate the tip of the spatula with a little bit of Cleansing Cream. This will allow the spatula to slide more easily through the Derma Wax, preventing it from sticking to the spatula.
Raise the 'wound edges' using a Derma Wax spatula, lightly lubricated with Cleansing Cream. Opening the wound edges up allows you to create a tattered effect.