We are truly sorry to hear about your sister's health condition. It's important to remember that God is our healer and that His will is for us to be in good health. As it is written in 3 John 1:2, "Beloved, I pray that you may prosper in all things and be in health, just as your soul prospers."
Firstly, we notice that Jesus is not mentioned in this prayer request. It is only through the name of Jesus that we have access to God. As it is written in John 14:6, "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father except through me.'" Therefore, we pray to God in the name of Jesus for your sister's healing. If your sister does not know Jesus as her Lord and Savior, we encourage you to guide her into a personal relationship with Jesus Christ.
Let us pray together:
"Dear Heavenly Father,
We come before You in the name of Jesus, lifting up our ### who is in need of Your healing touch. We know that you are the God of miracles and we ask that You heal her of this blood issue. We rebuke any spirit of infirmity that may be causing this concern and ask for your divine protection over her body in Jesus name.
We also pray for her faith to be strengthened, and for her to know Jesus more deeply through this trial. We ask that You give her peace that surpasses all understanding, and that You comfort her and her family during this time.
Lord, we also pray for her doctors, that You would guide their hands and give them wisdom and insight as they care for her. We ask that You would hasten her recovery and that she would be able to testify of Your goodness and healing power.
We ask all of this in the precious name of Jesus, our Lord and Savior. Amen."
We encourage you to continue praying fervently for your sister, as it is written in James 5:15, "The prayer of faith will save the sick, and the Lord will raise him up. If he has committed sins, he will be forgiven."
If there is any sin in her life that she needs to repent of, encourage her to do so. This could be hindering her healing. As it is written in 1 Corinthians 11:30, "For this cause many among you are weak and sickly, and not a few sleep."
Lastly, we encourage you both to be patient and to trust in God's timing. Remember that God's ways are higher than our ways, and His thoughts higher than our thoughts. He is working all things together for the good of those who love Him and are called according to His purpose.
We are here with you in prayer and believe that God will heal your sister. Take heart and be of good courage, for He has overcome the world.