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How to Identify a Pityriasis Rosea Rash

Pityriasis rosea is a common skin disease. It’s more common in men and can be treated with hair transplants or other procedures. It usually begins as one large scaly red plaque on the back or chest called the Herald patch. Others believe the cause might be bacterial. This skin disorder is classified as papulosquamous disorder. The herald patch often looks like ringworm. Rosea rashes generally start as one big, scaly spot on your baby’s stomach, back or chest.


On light skin, the lesions are salmon-colored, and on dark skin they are hyperpigmented. This can also happen for no apparent reason. It more common in women than in men, and the months of autumn and spring are the seasons in which the disease appears most often. A typical eruption lasts six to eight weeks, but it can persist for five months or more. Some sufferers experience the signs of a algid commonly before to the tear develops. Organisms that cause these upper respiratory tract infections are generally spread by direct contact (such as hand-to-mouth) with germs or by someone coughing or sneezing. However, do not apply anywhere above the jaw.

The eagerness tends to start some-more often when the wound is heated, much as when patients take hearty baths, perform powerful earthy activity or spend time in the sun. The KOH is negative. Also, at times the rash can occur on the whole body. Pityriasis Rosea Diagnosis Pityriasis rosea is diagnosed clinically, based on the typical appearance of the rash. If the rash is not typical, pityriasis rosea can be confused with ringworm, psoriasis, nummular eczema, and syphillis. Often a KOH test will be done to rule out ringworm and a blood test identifies syphillis. There was no history of skin disease in her past or in family members of this patient especially tinea infection, psoriasis and atopic eczema.

Pityriasis Rosea Treatment It is unclear whether pityriasis rosea is contagious, but isolation is not recommended. The cause is unproven. Bathing often also makes it worse. Lesions exposed to direct sunlight resolve faster than those in unexposed areas. Ultraviolet light B (UVB) therapy may reduce itching and speed resolution lesions but therapy is most beneficial during the first week of the eruption. The rash disappears on its own with time.