Viral exanthems in childhood. Part 3: Parainfectious exanthems and those associated with virus‐drug interactions

Abstract

Viruses cause not only direct infectious exanthems, but also parainfectious exanthems, which provoke skin alterations via interactions with the immune system. These distinct exanthems, for instance Gianotti-Crosti syndrome and pityriasis lichenoides group, do not reflect a specific pathogen but can occur in the course of many viral infections. In addition, some exanthems result from the interaction between viruses and drugs.