When done correctly with a practitioner guiding you, EFT and ICW can release the layers of trauma/PTSD from your mind, body and nervous system, in essence healing your trauma.
This is only done safely and effectively through one-on-one sessions with a trained professional who will guide you safely and gently into your subconscious mind and body (where the trauma is stored).
You can find mental health practitioners of all varieties here.
*DO NOT TRY THESE TECHNIQUES ON YOUR OWN IN AN EFFORT TO HEAL YOUR TRAUMA.
The risk of re-traumatization is extremely high and can be incredibly dangerous. Mental health is a very delicate part of you, and can shift from a state of calm into a state of shutdown very quickly, leading to suicidal ideation or suicide. These techniques are only to be used with present day emotions and stressors when used alone.