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What are CBC and PBS results in pityriasis rosea?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I recently had my blood tested, and it turned out that I have a WBC of 16000. I have no fever, a cold, or a cough. Although I have rashes, I suspect this is pityriasis rosea.

My doctor is not aware of my suspicion. Now he wanted me to undergo a CBC and a peripheral blood smear. If I really have pityriasis rosea, what would probably be the result of my CBC and PBS? I am 22, female, 5'1", 105 lbs.

Please advise.

Answered by Dr. Goswami Parth Rajendragiri

Education:

MBBS

Professional Bio:

Dr. Goswami Parth Rajendragiri is an experienced General Physician and Pathologist with extensive years of clinical expertise. He specializes in diagnosing and managing a wide range of medical conditions while providing holistic care to patients. As a Pathologist, he is skilled in performing and interpreting laboratory investigations that aid in accurate diagnosis and treatment planning. Dr. Rajendragiri is dedicated to delivering patient-focused care with a strong emphasis on preventive medicine and overall well-being.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome to icliniq.com.

I understand your concern.

Pityriasis rosea is a form of viral skin infection. Your total WBC count can be high because of that, and in your CBC, high lymphocytes can be a possibility, but it is not the rule. For your rash, Levocetirizine 5 mg OD, like an oral antihistaminic drug, can be prescribed.

If needed, a topical steroid can also be prescribed. I suggest you consult a dermatologist for examination. Repeat your CBC with peripheral smear examination report after a week.

I hope this helps you.

Thank you.

Medically reviewed by iCliniq medical review team
Published At August 13, 2018
Reviewed At June 5, 2026

Education:

MBBS

Professional Bio:

Dr. Goswami Parth Rajendragiri is an experienced General Physician and Pathologist with extensive years of clinical expertise. He specializes in diagnosing and managing a wide range of medical conditions while providing holistic care to patients. As a Pathologist, he is skilled in performing and interpreting laboratory investigations that aid in accurate diagnosis and treatment planning. Dr. Rajendragiri is dedicated to delivering patient-focused care with a strong emphasis on preventive medicine and overall well-being.

This doctor is not available for online consultations on the platform anymore.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Education:

MBBS

Professional Bio:

Dr. Goswami Parth Rajendragiri is an experienced General Physician and Pathologist with extensive years of clinical expertise. He specializes in diagnosing and managing a wide range of medical conditions while providing holistic care to patients. As a Pathologist, he is skilled in performing and interpreting laboratory investigations that aid in accurate diagnosis and treatment planning. Dr. Rajendragiri is dedicated to delivering patient-focused care with a strong emphasis on preventive medicine and overall well-being.

This doctor is not available for online consultations on the platform anymore.

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