Pityriasis rosea is a rash that appears as a big, round or oval, slightly larger, scaly area on the chest, abdomen, or back, and less frequently on the face, head, or near the genitals. This patch, also known as a herald patch, can be up to 10 cm large.
Some persons report headaches, weariness, fever, decreased appetite, or sore throat before the herald patch develops. Pityriasis rosea can produce itching, which can be intense at times, especially while exercising, exposed to heat, or under stressful conditions.
The patches are normally pinkish red in light-skinned people and grey, dark brown, or black in dark-skinned people. It normally goes away on its own after about ten weeks. It is not contagious, and it leaves no markings or scars in most people after it heals.
It can affect anyone of any age, although it most typically affects people between the ages of 10 and 35. Pityriasis rosea is a condition that affects both men and women equally.
Although the precise causes are unknown, it is considered to be caused by a viral infection, namely by certain uncommon forms of the herpes virus. Certain medications can cause pityriasis rosea. Angiotensin-converting enzyme inhibitors, nonsteroidal anti-inflammatory medicines, hydrochlorothiazide, imatinib, clozapine, metronidazole, terbinafine, and atypical antipsychotics are examples of these medications.
Pityriasis rosea complications are uncommon. After the rash has healed, the only complications are extreme itching and/or long-lasting brown blotches on dark skin.
Physical examination, Blood test, or Biopsy.
Pityriasis rosea is normally self-limiting, requires no therapy, and resolves on its own. If the rash does not produce any major symptoms, no treatment is required. Without medical intervention, pityriasis rosea normally clears up on its own in 6–9 weeks.
Your doctor may advise you to try the following to relieve itching:
In some circumstances, your doctor may prescribe medications such as corticosteroids, which reduce itching and swelling, or acyclovir, an antiviral that treats herpes.
Reduced exercise and avoiding hot showers and baths may also be advised.
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