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Iran Red Crescent Med J. 2014 Mar;16(3):e14360. doi: 10.5812/ircmj.14360. Epub 2014 Mar 5.

The effect of lemon inhalation aromatherapy on nausea and vomiting of pregnancy: a double-blinded, randomized, controlled clinical trial.

Author information

  • 1Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, IR Iran.
  • 2Nanotechnology Research Center, Faculty of Pharmaceutical, Tabriz University of Medical Sciences, Tabriz, IR Iran.

Abstract

BACKGROUND:

Nausea and vomiting of pregnancy are amongst the most common complaints that effects on both the physical and mental conditions of the pregnant women. Due to the increasing tendency of women to use herbal medications during pregnancy, the effect of lemon inhalation aromatherapy on nausea and vomiting of pregnancy was investigated in this study.

OBJECTIVES:

The aim of this study was to determine the effect of lemon inhalation aromatherapy on nausea and vomiting during pregnancy.

MATERIALS AND METHODS:

This was a randomized clinical trial in which 100 pregnant women with nausea and vomiting who had eligibility criteria were randomly divided into intervention and control groups based on four- and six-random block sampling method. Lemon essential oil and placebo were given to the intervention and control groups, respectively, to inhale it as soon as they felt nausea. The nausea, vomiting, and retch intensity were investigated 24 hours before and during the four days of treatment by means of PUQE-24 (24-hour Pregnancy Unique Quantification of Emesis).

RESULTS:

There was a statistically significant difference between the two groups in the mean scores of nausea and vomiting on the second and fourth days (P = 0.017 and P = 0.039, respectively). The means of nausea and vomiting intensity in the second and fourth days in the intervention group were significantly lower than the control group. In addition, in intragroup comparison with ANOVA with repeated measures, the nausea and vomiting mean in the five intervals, showed a statistically significant difference in each group (P < 0.001 and P = 0.049, respectively).

CONCLUSIONS:

Lemon scent can be effective in reducing nausea and vomiting of pregnancy.

KEYWORDS:

Aromatherapy; Citrus; Nausea; Vomiting

PMID:
24829772
[PubMed]
PMCID:
PMC4005434
Free PMC Article
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