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Acute Allergic Reaction

Acute allergic reactions caused by food, medication or insect exposure can progress to anaphylaxis.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Acil Servis department. Book Appointment →

What is Acute Allergic Reaction?

An acute allergic reaction is an IgE-mediated immune over-response to a previously encountered antigen. It covers a wide spectrum from mild local rash to life-threatening anaphylaxis.

Foods (peanuts, seafood), medications (antibiotics, NSAIDs), insect stings, latex and aeroallergens are the most common triggers. Symptoms can develop within minutes.

The mainstays of treatment are removal of the trigger, antihistamines and corticosteroids. Adrenaline is the first-line treatment for systemic reactions.

Symptoms

Urticaria and itchy rash
Swelling of the lips, eyelids and face
Throat irritation and voice change
Nasal congestion and sneezing
Shortness of breath and wheezing
Abdominal pain, vomiting, diarrhoea
Dizziness, hypotension

Risk Factors

Family history of allergy
Asthma and atopy
Previous severe allergic reaction
Polypharmacy
Exposure to a new food or drug
History of bee or insect stings

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Call emergency services for shortness of breath, throat swelling or hypotension
  • Go to the emergency department if symptoms are widespread or do not respond to corticosteroids
  • Anyone who has used an adrenaline auto-injector must still be evaluated in hospital
  • Allergy specialist follow-up is recommended to identify the trigger

Treatment Methods

01
Removal of the trigger
02
Antihistamines (cetirizine, pheniramine)
03
Corticosteroid (methylprednisolone)
04
Intramuscular adrenaline for systemic features
05
IV fluids and oxygen support
06
Observation and referral to an allergy clinic

Which Department to Visit?

You can visit our Acil Servis department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Acil Servis Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.