skin can potentially have negative interactions with conventional medicine. For example, the topical use of methyl salicylate-heavy oils like wintergreen may cause bleeding in users taking the anticoagulant warfarin. In late 2021, an aromatherapy spray was recalled after it was found to be contaminated with Burkholderia pseudomallei, the bacteria that causes melioidosis, which led to four cases of the disease and two deaths. See also Aromachologist List of unproven and disproven cancer treatments References External links Aromatherapy and Essential Oils – health professional patient PDQ (Physician Data Query) summaries from the National Cancer Institute Herbalism Mind–body interventions Fringe science Alternative medicine