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. Make an incision in the Derma Wax structure across the fingertip.