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Pityriasis Rosea Rash

medical illustration showing Pityriasis Rosea rash

Pityriasis Rosea Rash

Posted by Johns Creek Dermatology in Skin Conditions 15 Mar 2017

Pityriasis Rosea is a skin condition that typically forms on the chest, stomach, legs, or back. It begins as one large-sized, round or oval spot with a well-defined border, pink or red in color, called a herald patch. The patch may be up to four inches wide in size, and it is usually followed by smaller patches that branch out, much like the pattern of Christmas tree branches, from the original spot.


The main sign of Pityriasis Rosea is the slightly raised, scaly herald patch on your trunk. This large spot may be mistaken for ringworm or eczema, however, making it important to seek a proper diagnosis from a dermatologist. Some people complain of a sore throat, headache, fever, or of feeling tired for no reason before the rash appears. This may indicate that Pityriasis Rosea is caused by an upper respiratory infection or virus, but the exact cause of this condition is unknown. In about 50% of people, mild to intense itching can accompany this rash after the smaller branch-like spots appear. These symptoms can last from a few weeks to several months and usually occur in the spring and fall seasons.

Young male and female adults and adolescents, ages 10 to 35 years old, are most susceptible to Pityriasis Rosea. This skin condition is not common in people over the age of 60, but when it does occur in older people, its effects can last for months longer than with those who are younger. The patches or spots usually disappear when the rash clears, but people with darker skin complexions may find that the symptoms remain in the form of flat, brown spots.

Other Facts About Pityriasis Rosea

This skin condition is not contagious and once it has resolved, there are usually no long-lasting effects. Having Pityriasis Rosea once generally delivers lifetime immunity from developing it again.

The itchiness resulting from the rash can last an average of one to two months. Seek out your local Georgia dermatologist or Shereen Timani, M.D. of Johns Creek Dermatology for an accurate diagnosis and for treatment to relieve itching.


Getting the correct diagnosis for a skin condition is important so that appropriate treatment can be initiated. When you visit your physician with symptoms that resemble Pityriasis Rosea, she may scrape the skin and microscopically examine the scales to detect whether a fungus infection mimicking Pityriasis Rosea is the cause. You may also be subject to blood testing for other conditions that also closely resemble the symptoms of this condition.

If you are concerned about any spots or rash-like symptoms on your skin, contact your dermatologist for an examination. The services of Johns Creek Dermatology are available to you if you live in the counties of South Forsyth, Gwinnett, or North Fulton and the North Atlanta area. Shereen Timani, M.D. is a dermatologist with a specialty in Dermatopathology. She is pleased to be able to provide care for patients living in Alpharetta, Suwanee, Roswell, Duluth, Dawsonville, and Cumming, GA, and beyond.

Please note that this article is not meant to take the place of professional medical advice. Please contact Shereen Timani, M.D. or the staff at Johns Creek Dermatology to schedule an appointment.

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