As a soul, you are here for the experience — for that which a soul without a body cannot know
So there is no purpouse to erase trauma — as a soul you are here to experience it.
Once you enter the experience without preference or conviction, that is what you truly are as a soul: "unconditional".
Then the trauma loses its purpose and resolves.
But when you fight against it, when you try to get rid of it or heal it, it only takes over your life even more.