Tobit 6:8

8 He replied, "As for the fish's heart and liver, you must burn them to make a smoke in the presence of a man or woman afflicted by a demon or evil spirit, and every affliction will flee away and never remain with that person any longer.

Tobit 6:8 In-Context

6 So after cutting open the fish the young man gathered together the gall, heart, and liver; then he roasted and ate some of the fish, and kept some to be salted. The two continued on their way together until they were near Media.
7 Then the young man questioned the angel and said to him, "Brother Azariah, what medicinal value is there in the fish's heart and liver, and in the gall?"
8 He replied, "As for the fish's heart and liver, you must burn them to make a smoke in the presence of a man or woman afflicted by a demon or evil spirit, and every affliction will flee away and never remain with that person any longer.
9 And as for the gall, anoint a person's eyes where white films have appeared on them; blow upon them, upon the white films, and the eyes will be healed."
10 When he entered Media and already was approaching Ecbatana,
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.