This document discusses dressings and bandages for wounds. It defines dressings as sterile coverings for wounds and bandages as materials that hold dressings in place. It describes different types of commercial dressings and bandages and how to properly apply them. Dressings should be sterile, porous, and layered. Bandages should be tight enough to apply pressure but not restrict circulation. The document provides guidance on improvising dressings and bandages in emergencies and techniques like pressure dressings and slings.