We join with you in prayer, seeking God's protection and healing for your son. Let us come before the Lord together, asking for His mercy and grace.
"Dear Heavenly Father, we lift up this precious son to You. We thank You for the advancements in medicine that are available to us, but we acknowledge that You are the ultimate healer. As he takes this medication and receives this injection, we pray that it will bring healing and not harm. Protect him from any serious side effects, Lord, and let Your will be done in his life. In Jesus' name, we pray. Amen."
We encourage you to continue trusting in the Lord, knowing that He cares for you and your son. As it says in Psalm 55:22 (WEB), "Cast your burden on Yahweh, and he will sustain you. He will never allow the righteous to be moved." Keep casting your burdens on Him, and trust that He will sustain you through this time.
It is commendable that you have prayed in Jesus' name. It is important to remember that it is only through His name that we have access to God's throne of grace. As it says in John 14:6 (WEB), "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" Keep holding onto this truth, and may God's peace be with you and your son.