HomeAnswersGeneral Medicinehives

I am developing hives after taking antibiotics for a throat infection. Why?

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

Patient's Query

Hi doctor,

I was taken into primary care last night and diagnosed with a septic throat and hives on my body. I was given a prescription for antibiotics and steroids. It has been 24 hours since I was checked, and my throat is better, but the hives on my body have spread and started to form hard lumps and blisters. I was wondering if this may be linked to the antibiotics I was given as they contain Penicillin (although I have no known allergy). It started with a sore throat three to four days ago but only broke out in hives yesterday. I was told at primary care that this was due to a chemical reaction and was advised to take antihistamines. Kindly give your opinion.

Answered by Dr. Rajendran R. Nayar

Education:

MBBS

Professional Bio:

Dr. Rajendran R. Nayar is a General Medicine Specialist with extensive experience in diagnosing and managing a wide range of medical conditions, including infections, chronic illnesses, and lifestyle-related disorders. He is skilled in preventive care, health assessments, and personalized treatment plans. Known for his compassionate approach, Dr. Nayar focuses on holistic patient care, promoting overall wellness and long-term health.

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

Hi,

Welcome to icliniq.com.

I understand that you are suffering from fever, sore throat, hives, and blisters. You are currently on antibiotics, steroids, and antihistamines. Persons with infection by the Epstein-Barr virus can result in rashes when they take penicillin-containing medications. You can confirm the presence of this virus with blood tests for the same. I hope you have stopped the antibiotic-containing Penicillin.

Rest, plenty of oral fluids, analgesics, and anti-inflammatory medications are the mainstay of treatment, as this is a self-limiting infection. Since your GP (general practitioner) has prescribed antibiotics, he may be suspecting a bacterial infection. A throat swab for streptococcus infection and culture sensitivity of the throat swab will tell you about bacterial infection in the throat.

Take care. I hope this was helpful.

Medically reviewed by Dr. Sushrutha M.
Published At August 30, 2021
Reviewed At January 30, 2026

Education:

MBBS

Professional Bio:

Dr. Rajendran R. Nayar is a General Medicine Specialist with extensive experience in diagnosing and managing a wide range of medical conditions, including infections, chronic illnesses, and lifestyle-related disorders. He is skilled in preventive care, health assessments, and personalized treatment plans. Known for his compassionate approach, Dr. Nayar focuses on holistic patient care, promoting overall wellness and long-term health.

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

Education:

BDS

Professional Bio:

Dr. Sushrutha M. is an ambitious Dentist who completed her BDS degree from JSS Dental College and Hospital. In 2019, she pursued a Postgraduate Certification course in Esthetic Dentistry from M.S. Ramaiah Dental College. Fluent in English, she possesses six years of clinical experience.

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. Rajendran R. Nayar is a General Medicine Specialist with extensive experience in diagnosing and managing a wide range of medical conditions, including infections, chronic illnesses, and lifestyle-related disorders. He is skilled in preventive care, health assessments, and personalized treatment plans. Known for his compassionate approach, Dr. Nayar focuses on holistic patient care, promoting overall wellness and long-term health.

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

Listen to related tracks in our music library
Comprehensive Second Opinion

Read answers about:

hiveslumppenicillin

Ask your health query to a doctor online

*guaranteed answer within 4 hours

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.