“It works the same way with other magic types, because the curse is a specific type of energy it will reject any other type of energy.”
Yep, if the magic is different at all from the Curse, it wont work, regardless if its a similar type of magic. If you have Light Magic and you have the Light Curse, go ahead, it wont hurt ya. But anything that aint Light, even if said magic is somehwhat related to Light, it will hurt you.