Outdoor first aid differs from your everyday first aid within the city limits. In the backcountry, you need to be prepared for a variety of injuries and ailments. Since you’ll most likely be doing a lot of walking while in the backcountry, Muscle strains and sprained ankles are also a common occurrence and can be remedied with an elastic bandage to reduce swelling while providing support. Flesh wounds are also a common injury. Be sure to clean the affected area with filtered water, then antibiotic ointment, then wrapping the wound with gauze and tape. Other, more serious injuries like frostbite, head trauma, broken bones, and dehydration from diarrhea can also occur in the backcountry.