The way to protect oneself against envy, evil eye and harmful creatures is by reciting the ruqyahs that are prescribed in shari`ah as reported from the Prophet (peace and blessings be upon him), not by using amulets or by using the charms written by liars and charlatans.
Carrying amulets and charms for the purpose of protecting oneself against the evil eye and witchcraft falls under the prophetic forbiddance of using such things. `Uqbah ibn `Aamir al-Juhani (may Allah be pleased with him) narrated that some people came to the Messenger of Allah (peace and blessings be upon him) and he accepted the oath of allegiance from nine of them to the exclusion of one man. They said: O Messenger of Allah, you accepted the allegiance of nine and not from that one. He said: “He is wearing an amulet.” So he put his hand in (his garment) and broke it, then he accepted his oath of allegiance and said: “Whoever wears an amulet has committed shirk (associated others with Allah).” Narrated by Ahmad.
Ahmad also narrated that `Uqbah ibn `Aamir (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say: “Whoever wears an amulet, may Allah never fulfill his wish and whoever wears a seashell, may Allah never protect him from what he fears.” .
The correct scholarly view is that amulets are forbidden even if they are composed of words from the Qur’an. As for those that contain unknown letters and words, there is no disagreement that they are haram and there is no guarantee that they are not magic or that they are not meant to seek the help of the jinn. Believing that there is someone or something other than Allah that brings benefit or protects from harm is a kind of shirk that a Muslim has to avoid.
Thus, a Muslim need to get rid of these ta`weez by destroying or burning them.