What Would You Say to Someone Who Believes in “Healing Frequencies”?

Questions about what to say to someone who believes in “healing frequencies” in fabrics and music, whether Christians should use Oriental medicine that’s based on the concepts of qi, and how to respond to someone who says he’s sending “good vibes” your way.   What would you say to someone who believes in “healing frequencies” in fabrics and music and claims there is biblical support for it? What are your thoughts on Christians using Oriental medicine specialists, who base their techniques on the concepts of qi, to diagnose and treat allergies? How would you respond to someone who sends “good vibes” your way when you ask for prayers?