When you're under attack or doing the attacking you don't always have access to top quality medical care which can lead to really poorly tended wounds, but who said you ever had to keep that stanky old bandage made of moss and random plant fibers when you get back to base, where you have better facilities, supplies, and, medics so why cant you do away with the old bandage in favour of better dressing to lower the likely hood of infections and to allow the injury to heal more effectively.?