How to identify the cause of allergy?

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

Patient's Query

Hi doctor,

I am getting allergy once in three to four days, which causes rashes and swelling on the body. I take Cetirizine to control the allergy. The allergy is mostly due to unknown factors. Although, it could be because of cloth material I am wearing or bed sheets. Is there anything I can do to understand the cause of allergy to avoid its recurrence? I have been taking Cetirizine for years. Does that have any notable side effect?

Answered by Dr. Jyotisterna Mittal

Hi,

I am glad you chose icliniq for your medical-related queries.

I understand your concern and will try to help you with it.

I have read your query in detail and do understand your concern.

Thank you for consulting me.

You can always reach me at icliniq.com.

Investigations to be done

It is very difficult to narrow down to one or more causative factors. There are many tests available like patch testing or immunoassays to point out the allergy-causing antigens, but practically they are not very useful. However, if there is any family history of autoimmune disorders like thyroid, you may get a thyroid profile done.

Treatment plan

1. You can continue with Cetirizine. 2. Alternatively, you may take Loratadine 10 mg or Hydroxyzine 25 mg (at night). The side effects are quite rare especially if the dose is taken after a variable gap of a few days.

Preventive measures

You may apply Calamine lotion as a soothing agent.

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Answered by Dr. Jyotisterna Mittal

Medically reviewed by iCliniq medical review team

March 30, 2016

October 9, 2024

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Companion

Allergy Cause Identification Companion

How it works

Allergies can be frustrating, especially when the cause is unknown. This section helps you understand what allergies are, how they are identified, and common management strategies.

Allergy
Basics

Identify
Triggers

Common
Types

Diagnostic
Tests

Manage
Symptoms

Medication
Use

This information is based on general medical guidance. It is not a substitute for professional medical advice; consult a qualified clinician.

Always consult a doctor before taking medication; self-medication carries serious health risks. Take exact prescribed doses, and never start, change, or stop treatment without medical supervision.

Dr. Jyotisterna Mittal

Dermatology

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