“…Medicina 2021, 57, x FOR PEER REVIEW 4 of 12 [22,23,[26][27][28], two studies used two-armed [21,25], and one study used four-armed parallel design [24]. For interventions, two studies [23,25] used lavender oil, three studies used (damask) rose oil [21,22,24], and three studies [26][27][28] used a mixture of several essential oils. Aromatherapy was administered via inhalation for five studies [21][22][23][24][25], massage for two studies, [27,28] and both inhalation and massage for one study [26].…”