How soon after a surgery can a patient start using either Scar Fx Silicone Sheeting, RejûvaSil Silicone Scar Gel, or both?

The wound must be fully healed.

Scar Fx Silicone Sheeting and/or RejûvaSil Silicone Scar Gel can be used as soon as the wound is fully healed (sutures removed, no scabbing, or oozing).