One of the problems in the world is the prevalence of human healers using methods which involve contact with spirits other than our Holy Creator, God.
This is not surprising as health is a fundamental human need and the right sort of medical aid is not always available. In addition to this, some forms of disease are, so far, untreatable by human ingenuity. Therefore, those who provide alternative means of healing will always be accorded privileged social status.
However, an even worse problem is that the Church of our Lord and Saviour is frequently very lax in ministering healing to the Lord’s people, let alone outsiders. This lack presents a glaring loophole for the devil to introduce counterfeits and confusion.