The Death Note Wikia states that...
The Death Eraser can revive the people that have been killed by the note
The Death Eraser is an artefact
In the wikia is also states if you wrote "dies from a tragic accident or something",would the person's wounds or destroyed body parts be healed?
Which lead me to ask what is the limits of the Death Eraser and if you wrote "commits suicide by gun" and you used the Death Eraser to bring them back, would the wounds heal even though they come back to life?