Pityriasis Rosea Rash

How pityriasis rosea rash looks like ...

        The cause of pityriasis rosea is still unclear. But it is not a bacterial or fungal infection. Nor is the skin allergy, and diseases of internal organs and has nothing to do with it. Many dermatologists believe that pityriasis rosea is caused by viral infection. Because it is the same as influenza, it occurs in the spring and autumn, the temperature changes in the larger season, and occasionally patients have similar symptoms of colds. Can not confirm this theory and pityriasis rosea does not seem to spread.

        Pityriasis rosea rash has a considerable variation in this disease, each patient's lesion size, number, location are all different. Rashes appear acute benign in adolescents or young adults. This erythematous rash, has moderate inflammation characteristics. Its most striking feature is the presence of a rounded or oval initiale lesion. The rash generally affects the trunk and it is often self healing.

Differential Diagnosis

        It is necessary to distinguish pityriasis rosea from other dermatosis like: 1. Pytiriasis versicolor. 2. An eruption due to taking medication. 3. Psoriasis. 4. Chronic Lichenoid pityriasis. 5. Parapsoriasis. ( These two diseases are likely to be confused ) 6. Lichen planus. 7. Secondary syphilis.