title: Allergic contact dermatitis from sunscreen preparations complicating photodermatitis.
abstract: Two men with known histories of photosensitivity had apparent exacerbations of their dermatoses. Patch-testing showed the presence of allergic contact sensitivity to the sunscreens that they were using. The clinical distribution patterns of adverse reactions to sunscreens naturally simulate sun-induced reactions, thus providing clinical problems that require evaluation by both patch and photo-patch tests. These findings emphasize that allergic contact or photo-contact dermatitis from sunscreens that are used for prophylaxis of photodermatitis can actually complicate or aggravate the preexisting state of photodermatitis for which the sunscreens are prescribed.
mesh_terms: D062365:Aminobenzoates / Q000009:adverse effects; D001577:Benzophenones / Q000009:adverse effects; D003877:Dermatitis, Contact / Q000139:chemically induced* / Q000150:complications; D003875:Drug Eruptions / Q000150:complications / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010787:Photosensitivity Disorders / Q000150:complications*; D013473:Sunscreening Agents / Q000009:adverse effects*
chemical_list: D062365:Aminobenzoates; D001577:Benzophenones; D013473:Sunscreening Agents