Author(s): Drake TE, Maibach HI, Drake TE, Maibach HI
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Abstract A patient had acute stomatitis and dermatitis due to a popular toothpaste containing cinnamon oil flavor. Cinnamon cassia oil is known as a topical sensitizer and was demonstrated to be the offending allergen. Cinnamic aldehyde and related chemicals are used widely, so that patients having cinnamon allergy may be exposed to many sources. There is difficulty in diagnosing allergic contact stomatitis.
This article was published in Arch Dermatol
and referenced in Medical Safety & Global Health