Analgesic therapy is the standard approach for postoperative pain which have some adverse effects. Integrative medicine can provide pain therapy without annoying side effects. The inhalational aromatherapy (AT) with essential oils has been widely applied for pain management. Application of AT in management of postoperative pain is challenging with doubtful results. There is insufficient evidence about the safety and efficacy of inhalational AT for pain reduction after surgery. To obtain conclusive results, researchers should conduct large-scale studies, consider the multifactorial aspects of pain and understand the different mechanisms of essential oils.
