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Pityriasis rosea, also known as pityriasis rosea of Gilbert, is a skin disease that causes the appearance of scaly patches of red or pink color, mainly on the trunk, which appear gradually and disappear on their own, lasting between 6 to 12 weeks.
In most cases, it is common for a large spot to appear with several smaller ones around it, the large ones being called mother spots. Pityriasis rosea usually appears only once in a lifetime, in spring or autumn, but there are people who can develop the spots every year, around the same time.
The treatment of pityriasis rosea de Gilbert should always be guided by a dermatologist and is done to relieve the symptoms, since the spots normally disappear over time, without leaving a scar.
The most characteristic symptom of pityriasis rosea is the appearance of a pink or red spot with a size between 2 to 10 cm that is accompanied by smaller spots, around, and itching. These spots can take up to 2 days to appear.
However, there are still cases where other symptoms may appear, such as:
- Fever above 38º;
- Stomach, headache and joint pain;
- Sickness and loss of appetite;
- Rounded, reddish spots on the skin.
These skin changes should always be observed and evaluated by a dermatologist to identify the correct problem and initiate the appropriate treatment, according to each case.
Check out what other skin problems can cause red spots to appear.
What causes pityriasis rosea
There is still no specific cause for the appearance of pityriasis rosea, however, it is possible that it is caused by a virus that causes a slight infection of the skin. However, this virus does not pass from person to person, as there are no reported cases of pityriasis rosea that has spread to someone else.
People who seem to be more likely to develop pityriasis rosea are women, during pregnancy, under the age of 35 years, however, this skin disease can happen to anyone at any age.
How the treatment is done
Pityriasis rosea usually goes away on its own after about 6 to 12 weeks, however, if there is itching or discomfort your dermatologist may recommend treatment with:
- Emollient creams, such as Mustela or Noreva: deeply moisturize the skin, accelerating healing and calming irritation;
- Corticosteroid creams, such as hydrocortisone or betamethasone: relieve itching and reduce skin swelling;
- Anti-allergy medicine, such as hydroxyzine or chlorphenamine: These are mainly used when itching affects sleep;
In cases where symptoms do not improve with these treatment options, the doctor may advise treatment with UVB rays, in which the affected region of the skin is exposed, in a device, to a special light.
In some people, the blemishes can take more than 2 months to disappear and usually do not leave any kind of scar or blemish on the skin.