In Harry Potter when the kids “obliviate” their parents do they undo the spell later?

Question by crazydoglover: In Harry Potter when the kids “obliviate” their parents do they undo the spell later?
In the beginning of the 7th movie the kids make their parents forget about them, as if they are not there. Do they eventually undo the spells to let their parents remember them? or do they let their parents forget them forever?

Best answer:

Answer by Steve
Only Hermione did a memory wipe, and no she didn’t undo it later because they cant… She erased all their memories with her in it, and it can’t be undone.

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