debilitating headaches healed Miracle 9-11

Bob bumped into his doctor and told him that he receives healing when I pray for him. His doctor said that they can't do anything for him so he may as well keep calling me since it is working. So Bob does call and every time receives healing. I don't understand why the pain returns but Praise Jesus for loving Bob and healing him!!! Jesus do a deeper healing in his soul that will result in complete healing.