They develop in a pattern that resembles sagging Christmas tree branches. In approximately 50% of people with pityriasis rosea, the patches itch. In darker-skinned or Black people, the patches may be more raised (papular), and the centers of the patches may look like the tissue is dying (necrotic).
Pityriasis rosea is a self-limiting rash, which resolves in about 6-10 weeks. It is characterised by an initial large "herald patch" followed by smaller patches resembling a christmas tree. Christmas tree rash, or pityriasis rosea, is an oval-shaped skin patch that can appear on different parts of your body.
Here's how to identify it and what to do if you have it. A week or two after the herald patch appears, it is joined by "daughter patches" - smaller, scaly rashes that form on your chest or back, often in the shape of a Christmas tree. Get an overview of Christmas tree rash.
Pityriasis rosea is a type of skin rash. It is also called Christmas tree rash. It starts with 1 large, scaly patch.
It may be round or oval. This is called the herald patch. It then causes many more small patches.
The rash most often appears on the chest, back, and belly. It can take 1 to 3 months. Learn about pityriasis rosea, a common skin rash with a distinctive 'Christmas tree' pattern.
Dr. Ashlee Baldree at Village Dermatology explains its causes, symptoms, and treatment options available at our Katy and Memorial, Houston locations. Learn about pityriasis rosea, a harmless skin condition with a unique Christmas tree rash pattern and what to expect during healing.
The individual lesions form a symmetrical "Christmas tree" pattern on the back with the long axis of the ovals oriented in the "Lines of Blaschko" (invisible skin lines of embryonic origin). This pityriasis rosea rash is usually limited to the trunk, arms, and legs. Pityriasis rosea usually spares the face, hands, and feet.
The rash can form diagonal stripes down your back like the branches of a Christmas tree. The patches may itch, especially if your skin gets warmer during exercise or a hot shower. You may also feel tired and achy.
Some of these symptoms can be caused by other health conditions. Make sure to see your healthcare provider for a diagnosis.