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The most up-to-date and comprehensive source for studies on fluoride's multifaceted effects on human and animal health, with 100+ years of research organized by health category, type of study, author, journal, and date.
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Perioral dermatitis

Spring 1983 | Journal of the Association of Military Dermatologists | Mellette JR, Aeling JL, Nuss DD. | 9(1):3-8.
Since its description in 1957 by Frumess and Lewis (1) as a "light-sensitive seborrheid," perioral dermatitis (PD) has been a perplexing entity. It characteristically presents as a chronic eruption consisting of papules and pustules that develop on irregular areas of erythema and edema. the eruption is most prominent in the perioral area, but occasionally it extends symmetrically along the nasolabial folds and lateral canthus. An eczematous and scaly component associated with burning and itching