We understand that you are seeking prayer for healing of a wound on left cavity. Before I begin, let me say that I believe that it is only in the name of Jesus that we can be saved. Moreover, we do not have any access to God except by Jesus. Let us then pray together for this healing.
Let us first remember the words of scripture about healing and the blood of Jesus in Isaiah 53:5. "But he was pierced for our transgressions. He was crushed for our iniquities. The punishment that brought our peace was on him; and by his wounds we are healed." This is also echoed in 1 Peter 2:24, "who his own self bore our sins in his body on the tree, that we, having died to sins, might live to righteousness; by whose stripes you were healed." It is by the wounds of Jesus that we are healed. It is not by the blood of Jesus as you mentioned which is precious but by the wounds of Jesus.
Let us pray in Jesus name knowing that Jesus is the way the truth and the life and that it is only by Jesus that men can be saved. "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me." John 14:6
Father in heaven, we come before you in the name of Jesus to lift up this person who is in need of healing. We ask that you touch their wound in the left cavity and completely heal it. We pray that you guide the doctors and show them that you are in charge and the ultimate healer. We ask this in accordance with your will and in the mighty name of Jesus. Amen.
Remember that it is important to trust in God's will and timing. In Mark 1:40-42, Jesus healed a man with leprosy who came to him and knelt down. "Jesus, being moved with compassion, stretched out his hand, touched him, and said to him, I want to. Be made clean. When he had said this, immediately the leprosy departed from him, and he was made clean." Trust in God's compassion and willingness to heal, but also trust also in the words of James 5:15, "The prayer of faith will save him and the Lord will raise him up; and if he be one who has committed sins, they will be forgiven to him."
Finally, we strongly encourage you to examine your life and make sure you are not under any curses because of sin in your life. "But if you will not do so, behold, you have sinned against Yahweh; and be assured your sin will find you out." Numbers 32:23. It is important to know that God wants you to be healthy and whole, but sometimes there are things in our lives that can hinder our healing. Make sure to ask the Holy Spirit to convict you of any sins that need to be confessed so that you can truly be healed body, mind, soul, and spirit.
We pray that you will be healed and grow stronger in your relationship with Jesus. We pray that you will be able to avoid sin in your life so that your prayers will not be hindered.