The aim of this study was to investigate Effect of lavender in reducing pain and postoperative nausea and vomiting in patients undergoing abdominal non-emergency hysterectomy. This clinical trial, a randomized, double-blind, was performed on 104 patients candidate for non-emergency hysterectomy. patients invided to 52 person groups (intervention group: 30 drops of the extract orally lavender 50%, placebo: distilled water). VAS and numerical score nausea / vomiting in 4 stages, 15 minutes, 2 hours, 4 and 12 hours were recorded.Inclusion criteria: Persian language, ASA I and II, general anesthesia, No history of cardiovascular and respiratory disease
Exclusion criteria: history of Laparatomy, history of cesarean and hysterotomy, history of allergy in Lavender, duration of surgery more than 120 minute, nausa and vomitting