The blood of Christ is never referred to as a sickness cure but as a sin cure. Paul's testimony is that God made Him to be sin for us, not sickness. Paul makes it clear that Christ died for our sins. He never taught that His death and the shedding of His blood was to take away our diseases. We must be careful not to allow the word of men to supersede the Word of God in our lives.
Scripture never guarantees healing as one of the immediate benefits of salvation.
Next week we will consider physical healing and the will of God.