What is the purpose of a pressure bandage?

A pressure bandage is specifically designed to apply direct pressure on a wound in order to control bleeding. When applied correctly, it helps to compress the blood vessels in the affected area, thereby reducing blood flow and promoting clotting. This is especially critical in emergency situations where excessive bleeding can be life-threatening.

While other options describe important aspects of medical care, they do not capture the primary function of a pressure bandage. Cooling a burn, preventing infection, and providing comfort are all significant, but they do not relate directly to the immediate and crucial need to control active bleeding, which is the essential purpose of a pressure bandage.