I use the Etheric Cord Cutter (in conjunction with this field) to deal with cords which no longer serve me. My interpretation of the description of these fields is that this one repairs damage to the aura and energy bodies and that damage can happen in a variety of common ways.
I was taught that cords are not really “damage,” even when some of our cords are no longer serve us and do (like you said) drain us. Because our cords are something we created and allowed (even if we were unaware of it), it’s not so much “damage.” A more intentional practice (e.g., this field or an physical ritual, etc.) is more necessary for cords.
So, I’ve been playing the two fields (this one and Etheric Cord Cutter) back-to-back.