A professional used in this context is referring to a person engaging in a given activity as a source of livelihood or as a career. It is a provider-based therapy where someone who is knowledgeable about a specific alternative health therapy provides care or gives advice about its use. It refers to all doctor - patient relationships where the professional is functioning in the role of a doctor, whether licensed or not. The professional is providing some type of treatment or therapy which the patient cannot perform on themselves.