A boy with a one-sided red rash.

We report on a boy with a sudden onset of unilateral skin lesions following tonsillar infection with fever 2 weeks before. The lesions consisted of erythematous macules with scaling affecting trunk, axillar, as well as inguinal region. CRP, blood differential, serum IgG and IgM antibodies (coxsackievirus, cytomegalovirus, parvovirus, herpes virus, varicella zoster virus, human herpesvirus-6/-7), and lesional swabs (bacteria, dermatophytes, yeasts) were uneventful.