A case of frog egg‐like perifollicular allergic contact dermatitis due to hydroquinone

Abstract

ACD to topical drugs commonly used to treat eczematous skin lesions should be suspected in all the cases of an otherwise-non-explainable dermatitis exacerbation. Moreover, ACD to excipients of topical drugs may be difficult to avoid because the same excipients may be present in different topical medicaments using different nomenclatures.