Read Rev 12:11 They overcame Satan by the blood of the Lamb and the word of their testimony. …so speak it out to the demon of pain and arthritis… ” Jesus took my infirmities, bore my sicknesses with His wounds. I am healed. My body is a temple for the Holy Spirit redeemed by the blood of Jesus. No demon of infirmity has any place in me.” At the end of this Youtube video….audio really Derek Prince offers the above advice….go to 13:14 marker.