What is the name of the skin condition that starts with a "Herald Patch" and follows with a "Christmas tree" pattern of lesions?

The skin condition characterized by the presence of a "Herald Patch" followed by a "Christmas tree" pattern of lesions is known as Pityriasis Rosea. The Herald Patch is usually the first lesion to appear, often appearing as a large, scaly, oval-shaped patch. Subsequently, additional lesions develop in a pattern that resembles the shape of a Christmas tree on the trunk of the body, which is how the condition gets its name.

Pityriasis Rosea is generally self-limiting and may be associated with a viral infection, although the exact cause is not fully understood. The condition typically resolves on its own within a few weeks to months and is distinguished by its unique pattern and the characteristic progression of lesions. This distinctive progression helps healthcare providers diagnose the condition effectively in clinical settings.