Hole Between Eyebrows

This is conversation between me and my older daughter:
DD: Mama don’t scold me
Me: I don’t scold you (confused since I really didn’t scold her, I just got headache)
DD: Then why you got hole?
Me: Huh? What hole?
DD: There, there is hole there.
Me: Where?
DD: On your forehead, between your eyebrows.
Me: Hahahahaha…
Because I got headache, I was frowning, which caused the “holes” in between my eyebrows.