Divine healing is when God moves by His mercy to heal someone. Either during worship or through a healing minister. The recipient may or may not be in faith.
Corporate Healing can take place as in James 5:14–16. This is faith in conjunction with others faith — either a prayer of agreement or Faith Command declaring one is healed by the stripes of Jesus and in the Name of Jesus.
Faith healing can be through a believer’s own freewill to take healing by faith in the Word of God — the same way one receives Salvation — by believing in their heart and confessing with their mouth.