What Is Pityriasis Rosea?
2. Causes
We know very little about what causes pityriasis rosea; it seems to appear for no apparent reason. However, we do know that it is not contagious, so you are not going to catch it from other people. It is thought that it might be caused by some strains of the herpes virus, but this has not been confirmed.
Not knowing what causes the condition makes it even harder to find a cure for it. However, considering the condition does not pose a threat, it is low down on the priority list of diseases that need investigation. Until enough is known about the disease, we will simply have to let our immune systems deal with it.
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