7Pityriasis Rosea
Pityriasis rosea, which literally means “fine pink scale” in Latin, is a harmless skin condition. In early stages, it typically causes a scaly, slightly raised, and large skin spot on the abdominal area, chest, or back. This is also known as a herald patch, which can be accompanied by smaller spots that sweep outward. These symptoms typically subside and disappear totally in 6 to 8 weeks. In people with psoriasis, plaques tend to have recurrent flares. In most cases, the distinctive rash patter is enough to differentiate psoriasis from pityriasis rosea. Plaques in psoriasis are like to have a more irregular shape and pronounced scaling. [7]
