Pityriasis Rosea

Pityriasis Rosea (PR) is normally not considered to be highly contagious. It is more common in females (almost two to one) aged 10 to 35. And, it seems to be more prevalent in the spring and fall.

Symptoms

PR usually starts with a singular, 2 – 10 centimeter diameter rose colored or tan patch appearing on the torso. Physicians usually refer to this as the herald patch. In some cases, people may develop a loss of appetite, fever, joint pain or sore throat prior to the appearance of the initial patch.

Within seven to 14 days, numerous similar but smaller patches usually appear on the torso (e.g. along and radiating from the spine), and other parts of the body as well. These secondary patches usually appear along cleavage lines and can take on the appearance of a classic “Christmas Tree” pattern. Itching is quite common, and in some cases, severe itching may be present. The rash can be accompanied by a head-ache, low grade fever, nausea and fatigue.

The skin eruptions usually last from four to eight weeks.

Causes

The exact cause is not known, but appears to be associated with the onset of a viral infection. People with compromised immune systems may be more prone to the disease. However, a single outbreak usually provides life-long immunity to the skin condition.

Treatment

For mild symptoms, treatment is usually not required. However, in cases where itching is chronic or severe, topical or oral corticosteroids and antihistamines may be prescribed. Exposure to sunlight, or doctor prescribed UV phototherapy may also provide some relief from itching.

Return from Pityriasis Rosea to Skin Rash