May I put another view for consideration? Spiritual, Faith or Energy Healings' are still going on as in Biblical times. Jesus said: You can do all that I do and more; or words to that effect.
Often when invoking an Energy Healing for a person; this is very similar to Praying but in a much more specific way than most Prayers.
Let me clarify, All Healing comes from God, The Source and All Healing takes place from within you, as you were created to heal yourself naturally. All a competent Energy Healer is doing, when invoking a healing; is removing any impediments from preventing this natural process. We all have this natural ability. However most of us have not recognized it or have never used this ability and so we have lost the memory of how to heal ourselves and others.
A competent Energy Healer invokes a healing in a very specific way for a specific problem or incident and if invoked correctly, that change happens almost instantly at the Spiritual or Energy level of that person. The physical manifesting of that energy healing may take that person's natural healing process a few hours, days or more to appear.
During his teaching, Jesus gave us the specific ways to do many things however, many are so simple, and we seem incapable of recognizing and understanding the profound and miraculous power of his words and actions.
As we gain more knowledge and learn the specific methods; instant healing in the physical is possible and happening every day around the world. Just like the miracles of the Biblical times; yet although we have heard or even seen some of these miracles we seem to discount them because they mystify science and seem beyond explanation.
Some people have discovered these specific methods and are using them on a daily basis to heal others. These methods are the same as those used by Jesus. Some call these miracles. We have all heard of some miraculous cures and some of us have even witnessed such events.
Yet we doubt because we lack true understanding.
The Question often posed is why isn't everyone healed?
Let me address some reasons. Maybe the person invoking the healing has not done it in the correct or specific way.
Maybe the person being healed does not want to be healed at a Spiritual level, even though this is not apparent at a conscious or human level.
There may be some other reason that we are having no logical or conscious understanding.
Why are we so surprised? Haven't our most important breakthroughs come from experiences that when they were happening to us we would have stopped these events if we could?
Also consider, has any conventional medical treatment not worked with some people and doctors try something different, and then something different, this also may not work. Do we criticize? Maybe; do we stop all treatment? We are all so uniquely different.
Very few people have any idea of what the original cause or Spiritual reason is for any event that happens to us or another person.
Jesus understood this and never judged anyone, although he did refer to some as misguided.