Contact dermatitis masquerading as fixed drug eruption: making a critical distinction.

A 43-year-old man presented to the sexual health clinic with a 24-hour history of an erythematous, pruritic rash on the uncircumcised glans of the penis with no associated genitourinary, dermatological or systemic symptoms. His rash appeared 3 days after taking doxycycline for the treatment of