Pityriasis rosea is a skin condition that causes a “Christmas tree” rash. It starts with one patch, known as the “mother patch,” and branches out with smaller “daughter patches” on other parts of the ...

Pityriasis rosea is a common skin condition that causes a set of temporary red, scaly rashes. These mild rashes aren't contagious and usually clear up without medical treatment in 10 weeks or less. To ...

No, pityriasis rosea is not contagious. You cannot get it from another person. The cause of pityriasis rosea is not fully known, but experts believe a viral infection that triggers a skin reaction ...

This patient had pityriasis rosea, an acute inflammatory dermatosis of unknown etiology. Viruses, particularly human herpesvirus 6 and 7, have been suggested as the causative pathogen, but study ...