Pityriasis alba is a skin condition that may lead to patches of skin discoloration. It is typically harmless and not contagious. Pityriasis alba usually improves without treatment within a year.

Understanding the Context

Pityriasis (pit-ih-RIE-uh-sis) rosea can happen at any age but is most common between the ages of 10 and 35. It tends to go away on its own within 10 weeks. Treatment may help relieve the symptoms. The rash persists for several weeks and heals without scarring.

Key Insights

Medicated lotions may lessen itchiness and speed the disappearance of the rash. Pityriasis rosea lesions are characteristically oriented so that their long axes run parallel to the cleavage lines of the skin, forming the characteristic Christmas tree pattern that is most apparent ... What is pityriasis rosea? Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back.

Final Thoughts

Pityriasis rosea ... Pityriasis rosea is a type of skin rash. [2] Classically, it begins with a single red and slightly scaly area known as a "herald patch". [2] This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. [4] Some medications and vaccines can cause a rash that looks like pityriasis rosea. It’s important to rule these out, so tell your dermatologist about vaccines you recently had and all medications you take.

Pityriasis rosea is a disease that causes the formation of many small patches of scaly, rose-colored or tan-colored patches on the skin. Pityriasis rosea may be caused by a viral infection. Pityriasis rosea (pih-tuh-RY-uh-sis ROH-zee-uh) is a common skin condition that causes patches of your skin to develop raised, scaly rashes. It may appear on any part of your body, but it usually appears on the trunk (torso), arms and legs.