Herbal Toothpowder Induced Erythema Multiforme

Herbal toothpowders are available in market in a wide varieties, which consist of various ingredients. In rural areas of the developing countries, they are still used for cleansing teeth. Erythema multiforme (EM) is an acute mucocutaneous disorder that is believed to be a sequel of a cytotoxic immunologic attack on keratinocytes which express non-self-antigens. A 31-year-old male who used herbal toothpowder for oral-hygiene maintenance presented with ulcers in mouth, encrustation on lips and target lesions on both hands, suggesting Erythema multiforme. An oral biopsy confirmed the diagnosis. To the best of our knowledge, there is no report of an association of herbal extracts and EM in the English literature. With this report, we present a rare new triggering factor of Erythema mutiforme, thus adding it to the endless list of aetiologies.

Abstract licence: CC BY-NC-ND

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