Materials and Methods: Essential oil of plant in blooming was obtained by hydro distillation method (clavenger) and analysed by (GC/MS). Antioxidant activity determined by 1,1-diphenyl-1-picrylhydrazyl (DPPH) assay, anti anxiety effects were studied using Spielbergers state anxiety inventory questionery method and analyzed by using SPSS 18 statistical Software and t-test (0.05%).

Results: Carvacrol (26.2%), limonene (19.6%), 1,8-cineole (11.8%), terpinen-4-ol (7.6%), spathulenol (4.9%), α-pinene (4.2%), p-cymene (4.2%), caryophyllene oxide (2.7%), and terpinolene (2.6%) were the prominent components of essential oil and showed good antioxidant property via radical scavenging activity (DPPH) assay with IC50 values of 4.3±0.12% to compare with BHT standard (2.18±0.3%). Clinical results showed that among 100 patients with average anxiety scores for the case group and the control was recorded 53.37±9.8 and 49.19±12.96, respectively and the difference was not significant (P<0.08), but after intervention, this difference was found to be statistically significant (P<0.0001)with regard to the results 40.28±6.66 and 47.87±12.96 for cases and controls, respectively.

Conclusion: There is a positive relationship between essential oil components, its antioxidant activity in reducing anxiety in patients undergoing curettage (D & C), especially in the night before the surgery.