1. What is pityriasis rosea?
Pityriasis rosea is skin rashes that may appear as large spots on the chest, back and abdominal skin. The spots are followed by small lesion patches.
2. What are the symptoms of ptyriasis rosea?
The symptoms of pityriasis rosea include a single large patch on the back or upper arm, which is usually rough in texture. The patches are accompanied by headache, fever or sore throat. After nearly a week, the small lesions or patches also appear on chest or back and may be itchy.
3. What is the cause of pityriasis rosea?
The actual cause of pityriasis rosea is not yet known, but doctors believe that it occurs due to a viral infection, most probably a type of herpes, as the symptoms are similar to herpes.
4. How is pityriasis rosea diagnosed?
The diagnosis of pityriasis rosea includes a physical examination by the doctor. Investigations, such as blood tests, skin scraping or biopsy, can be done to rule out the presence of eczema or ringworm-like infections.
5. What is the treatment for pityriasis rosea?
Pityriasis rosea infection takes 8-10 weeks to disappear. The doctor can prescribe over-the-counter topical lotions, such as calamine or zinc oxide, to manage the itching. In addition, medicines, such as antihistamines can be given for treating rashes and itching.