Do i really need to keep these dressings on for 2 weeks my knee feels amazing the constant pain I had on the inside has gone and I can walk normally ( Amazon.com: 20 Pcs Extra Long Adhesive Island Dressing 4"x14" Bandage Bordered Gauze Pads for Knee Replacement Incision Post Surgery Hip Recovery Back Surgery Breathable Bordered Wounds Cover : Health & Household Table 1 from Post operative wound management. Semantic Scholar How Often Should You Change a Wound Dressing