With appreciation I send this comment. I read your answer to the question on anointing oil and I want to add this:
The reason that some are not healed after anointing them with oil could be that they did not ask the elders of the Church. But the most important thing is faith. The oil is a physical substance, and the Lord sometimes uses physical objects to help our faith make a link between the seen and the unseen. For example, the bread and drink of communion and the water of baptism for the remission of sins. When I ask the elders of the church to pray for me in order to be healed, then I have confidence that I will be healed. If there is lack of knowledge in my answer, please let me know. Thanks and God bless.