Overview OPSITE Post-Op with its REACTIC film, offers a high level bacterialbarrier and moisture management in a post-op dressing OPSITE Post-Op with its REACTIC film1 offers a high-level bacterial barrier2 and moisture management2 in a post-op dressing. The low-allergy adhesive3,5 reduces the risk of irritation while ensuring the dressing stays in place, even over awkward contours. The pad surface leaves the wound site clean and comfortable4, reducing the pain and site trauma when changing the dressing5-6.