2 Having then come unto Him, she says nothing else, but “Have mercy on me,” and by her cry brings about them many spectators. For indeed it was a pitiful spectacle to see a woman crying aloud in so great affliction, and that woman a mother, and entreating for a daughter, and for a daughter in such evil case: she not even venturing to bring into the Master's sight her that was possessed, but leaving her to lie at home, and herself making the entreaty.
And she tells her affliction only, and adds nothing more; neither does she drag the physician to her house, like that nobleman, saying, “Come and lay your hand upon her,” and, “Come down ere my child die.”
But having described both her calamity, and the intensity of the disease, she pleads the Lord's mercy, and cries aloud; and she says not, “Have mercy on my daughter,” but, “Have mercy on me.” For she indeed is insensible of her disease, but it is I that suffer her innumerable woes; my disease is with consciousness, my madness with perception of itself.
Source: Homilies on the Gospel of St. Matthew (New Advent)