The use of personalized essential oils may help people recover their lost sense of smell due to COVID-19, according to a new study.
Jan. 4, 2023 – Personalized essential oils may help people recover their lost sense of smell due to COVID-19, according to a new study.
A traditional olfactory training protocol uses four specific scents: rose, lemon, eucalyptus, and clove. One group in the new study used those scents, while another group sniffed four scents that they selected themselves from 24 scent options. A third control group did not participate in olfactory training. Additionally, a subset of people in the study were shown images of the scents they smelled.
“Allowing patients to select their own odorants may improve cost-effectiveness and increase adherence, particularly if there was an issue of familiarity with 1 of the classic 4 odorants,” she wrote. “The addition of visual cues to [olfactory training] may improve engagement in some patients while increasing the burden on others. Ultimately, patients' belief and satisfaction in their therapeutic plan can have substantial placebo-effect benefits that are not to be ignored.
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