The Effect of Peppermint Oil Aromatherapy on Pain, Functional Capacity and Cost in Fibromyalgia Patients

Inclusion criteria for the study: * Diagnosed with fibromyalgia according to the 2010 American College of Rheumatology diagnostic criteria, * Experiencing chronic pain, * Volunteers to participate in the study, * Aged 18 years or older, Exclusion criteria for the study: * Those with painful medical conditions other than fibromyalgia (e.g., migraine, diabetic neuropathy, etc.), * Those with a chronic respiratory system disease (history of asthma or another reactive airway disease), * Individuals with compromised skin integrity in the application areas, * Pregnant and/or breastfeeding women, * Individuals with neurocognitive impairment who are unable to answer the questionnaire, * Individuals with a known history of allergies, * Individuals using any topical products during the application period, * Individuals receiving other complementary treatments for chronic pain management. Criteria for discontinuing the study: * Patients who continue their treatment at a different centre after being included in the study, * Patients who undergo any medication or treatment changes during the study period, * Patients who are bothered by the scent of the essential oils used (peppermint oil (Mentha × piperita) and sweet almond oil (Prunus amygdalus var. dulcis), or who develop an allergic reaction to essential oils.