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Noun

hypersensitivity reaction - an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock

hives, nettle rash, urticaria, urtication - an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs

allergic reaction, allergy - hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity

anaphylaxis - hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance

hypersensitivity - pathological sensitivity

allergic rhinitis - rhinitis caused by an allergic reaction

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References in periodicals archive

Erythema multiforme (EM) is a hypersensitivity reaction of the skin to various agents with typical cutaneous and/or mucosal manifestations (1).The condition is often self-limiting but may be recurrent.

Erythema Multiforme Associated with Herpetic Pharyngitis

Fluoxetine is rarely associated with hypersensitivity reactions. In one case, it was reported to be related with a severe systemic hypersensitivity reaction including drug rash, eosinophilia, and systemic symptoms in a 4-year-old girl.

Angioedema and Urticaria Associated with Fluoxetine in a Preadolescent Boy/Preadolesan Bir Erkek Cocukta Fluoksetinle Iliskili Anjiyoodem ve Urtiker

This type of delayed hypersensitivity reaction is known as cell-mediated hypersensitivity.

Allergic contact dermatitis

In our patient, the diagnosis of hypersensitivity reaction was made more difficult by the similarity of the symptomatology with the presenting signs of the vasculitic disease, mimicking a disease relapse.

Azathioprine-induced interstitial nephritis in an anti-neutrophil cytoplasmic antibody (ANCA) myeloperoxidase (MPO) vasculitis patient

Our case reported a rare hypersensitivity reaction to dapsone, and hence, it is imperative for the physicians and dermatologists to have a watchful eye over the patients on dapsone to ensure timely diagnosis and appropriate management.

Dapsone hypersensitivity syndrome - A case report

Premeditation with intravenous hydrocortisone and antihistamine can prevent serious hypersensitivity reaction and should be routinely done.

A STUDY ON POISONOUS SNAKEBITES FROM NORTHERN KERALA

Based on the clinical scenario, the patient's tentative diagnosis was ticagrelor-induced hypersensitivity reaction with angioedema as this was the only new medication he was given (he was on daily maintenance aspirin for his CAD and previously tolerated a 1-year course of clopidogrel after drug-eluting stent implantation).

Ticagrelor-Induced Angioedema: A Rare and Unexpected Phenomenon

Azathioprine immune hypersensitivity reaction is a rare adverse effect that has been reported in the literature relatively infrequently; however, the clinical presentation can often mimic sepsis [1, 2].

Drug Hypersensitivity due to Azathioprine with Elevated Procalcitonin

In the bovines evaluated in this investigation, PIA was believed to have occurred as a consequence of ingestion of wafer meal, which was easily inhaled by the cattle in its crushed state to result in a hypersensitivity reaction in the pulmonary airways.

Atypical bovine interstitial pneumonia in a semi-intensive beef cattle system/Pneumonia intersticial atipica em bovinos de corte criados em semi confinamento

On May 1, 2017, FDA received an adverse event report concerning a 71-year-old male patient who developed a hypersensitivity reaction after IV administration of ImprimisRx's compounded curcumin emulsion product.

Compounded curcumin emulsion product for injection by imprimisRx: FDA investigation--serious adverse events associated with use