A sterile, wound-covering substance or material (e.g., ointment, collagen matrix) intended to actively promote the healing of a wound through the temporary modification of a local biochemical parameter(s) or process(es) [e.g., a change to wound pH, enzymatic activity, or protein binding activity], that contains an antimicrobial agent [e.g., silver (Ag), honey]. The device may be used for various types of partial- and full-thickness wounds, draining wounds, sores/ulcers, skin lacerations/abrasions, burns, or surgical wounds. This is a single-use device.