**5. Conclusions**

Neroli oil aromatherapy during labor significantly impacts women's experience of perceived pain and anxiety, which seem to be reduced in their severity during all stages of labor. Since neroli oil is a non-pharmacological remedy, which is efficacious in relieving perceived pain and anxiety in women during labor and childbirth, it represents an extremely useful alternative to pharmacological drugs. In fact, neroli oil aids in the progress of labor by decreasing perceived pain and anxiety, thus rendering labor and childbirth easier and less problematic.

**Author Contributions:** Conceptualization, C.S., S.M., S.C., M.L. and V.B.; methodology, C.S., S.M., S.C., M.L. and V.B.; formal analysis, C.S.; investigation, C.S., S.M., S.C., R.Z., G.S., N.M.M., M.L. and V.B.; resources, S.C., R.Z., G.S. and N.M.M.; data curation, C.S. and S.C.; writing—original draft preparation, C.S. and S.M.; writing—review and editing, M.L. and V.B.; supervision, M.L. and V.B.; project administration, C.S., M.L. and V.B.; M.L. and V.B. equally contributed as last authors. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** The study was conducted in accordance with the Declaration of Helsinki, and approved by Ethical Committee of Psychological Research of the University of Naples Federico II (protocol number 2/2021; date of approval: 9 February 2021). The clinical trial was retrospectively registered on the Deutsches Register Klinischer Studien (n◦ DRKS00027563).

**Informed Consent Statement:** Informed consent was obtained from all subjects involved in the study. Written informed consent has been obtained from the patients to publish this paper.

**Data Availability Statement:** The data and materials that support the findings of this study are available from the corresponding authors upon reasonable request.

**Conflicts of Interest:** The authors declare no conflict of interest.
