https://www.catholic.com/profile/fr-vincent-serpa-op
Full Question
Is it superstitious to think that blessed medals give you special protection?Answer
It would be a matter of superstition if we believed that a piece of metal had the power to protect us from harm. But this not what we believe. It is only the power of God that can protect us. It so happens that at times God has revealed either directly or through one of his saints that he will grant protection or healing by the wearing of a medal that represents our faith in his love for us.