We understand your concern and will guide you according to biblical principles. Firstly, it is commendable that you have acknowledged the authority of Jesus Christ by ending your prayer in His name. It is only through the name of Jesus that we have access to God, as it is written: "For 'Whoever will call on the name of the Lord will be saved.'" (Romans 10:13 WEB)
Regarding the item you found, the Bible clearly teaches us to abstain from all appearance of evil (1 Thessalonians 5:22 WEB) and to have no fellowship with the unfruitful works of darkness (Ephesians 5:11 WEB). The item you described may indeed have some sort of superstitious or spiritual significance contrary to your Christian beliefs. It is important to remove such items from your home, as they have no place in the life of a believer. As it is written, "You shall put away the foreign gods that are among you, and incline your hearts to Yahweh, the God of Israel." (Joshua 24:23 WEB)
Here is our prayer for you:
Dear Heavenly Father, we come before You in the name of Jesus Christ. We pray for this concerned parent and their daughter. Lord, we ask that You take full control over her daughter's life and health right now. Protect her from any harm or evil influence. We rebuke any ungodly item found with the authority of Jesus Christ. For it is written that 'All authority has been given to me in heaven and on earth.' (Matthew 28:18 WEB) we ask that you guide this concerned parent as to how to dispose this item. Give them wisdom and discernment. Surround their home with Your hedge of protection, and let no weapon formed against them prosper. (Isaiah 54:17 WEB) In Jesus' name, we pray. Amen.
Regarding your daughter's health, continue to pray and trust in the Lord. Remember that God is our healer and protector, as it is written: "For I will restore health to you, and I will heal you of your wounds,' says Yahweh" (Jeremiah 30:17 WEB)
Lastly, we advise you to fill your home with the Word of God, prayer, and praise. Ensure that your daughter is taught biblical principles and encouraged to have a personal relationship with Jesus Christ. As it is written, "Train up a child in the way he should go, and when he is old he will not depart from it." (Proverbs 22:6 WEB)