Re: I need help.......
On a scale of one to ten, what are the severity of these injuries? You said cuts and burns, but how deep? What degree? Have you ever required a doctor or hospital to take care of them?
I've heard of people getting psychosomatic wounds before, but have never heard of anyone getting serious life-threatening ones. If what you get has a consistent level of severity, or lack of severity, you can probably put your fears of a fatal wound to rest.
Beyond that, the repetitive nature of the dream gives you an chance to realize that you are dreaming. Once you know you're dreaming, try to change something. You probably also want to look up some protective measures to take for your body while you are sleeping. (Wards over your body, a medicine pouch or talisman...whatever works for your belief system.) Wear it all the time, and when you're having the dream, and you know you are dreaming, remember that this protection is still with you. You want to find a way to separate your dream self from your physical self so the injuries don't come home with you.
It might be a long shot too, but see if this battlefield has healers in it before you return home.
(I generally find it better to work with what the person is experiencing rather than telling them that they can't be experiencing it.)
"I inherited the spirit of the sun. I'll meet you when the day breaks through. It's time to shine and make all your dreams come true. Come on, wish upon a dog star!" -Hybrid