What are exanthematous drug eruptions?

• The most common of all cutaneous drug eruptions (90%) • Limited to the skin (no mucous lesions) • Erythematous macules and papules appear on the trunk and spread centrifugally to the extremities with a symmetric fashion • Pruritus and mild fever may be present • Rash appears 7 to 10 days after drug initiation if it is the first episode, 24 to 48h after repeat drug initiation