Wound Care Facts. 1  The skin is a barrier to the outside world protecting the body from infection, radiation, and extremes of temperature. 2  There are many types of wounds that can damage the skin including abrasions, lacerations, rupture injuries, punctures, and penetrating wounds. The skin is a barrier to the outside world protecting the body from infection, radiation, and extremes of temperature. 2  There are many types of wounds that can damage the skin including abrasions, lacerations, rupture injuries, punctures, and penetrating wounds.