Placibo Controlled Dose Reduction

Placibo controlled dose reduction is where scientists give a drug for a few days and then swap it for a placibo. The more times the patient receives the drug, the more strongly they associate relief of symptoms with receiving the drug. When doctors give hope to patients, helping them to expect to get better, they do get better faster. Some documented spontaneous remissions in patients may have occurred because belief or faith mobilized the immune system. Can we harness the plicibo effect?