Thank you for posting the question,
As you mentioned you are suffering from
pityriasis rosea started from some weeks ago. First of all, you do not need to worry about this illness since it is a benign disease.
Pityriasis rosea may cause discomfort by generalized itching and lasting about 2-3 weeks. The majority of patients give a history of herald patch on abdomen area preceded by upper
respiratory tract infections. Fortunately, minority suffer from
severe itching. Researchers have shown an immunologic reaction to some infections like respiratory viruses may mimic these symptoms.
According to the instructions posted by you and my experience with this illness, I suggest you as follows:
1. Control your itching using antihistamine medications local and oral prescribed by your doctor.
2. If you suffer from fever
acetaminophen helps.
3. There are some cases that
erythromycin may help and facilitate the process of illness treatment and it depends on the extension of your skin lesions and other symptoms simultaneously appeared in your case.
3. In the case of lasting symptoms more than 3 months you demand to rule out some other illnesses for the purpose of differential diagnoses, such as eczema, skin medication reactions,
psoriasis, and fungal infections. In this case, you need to take some routine tests in addition to a
skin biopsy.
Hope you find my recommendations helpful,
Regards