allergen

Immune system provocateur

An allergen is a substance that triggers an allergic reaction in sensitive individuals.

Common allergens include pollen, dust mites, pet dander, certain foods, and insect venom.

What qualifies as an allergen varies by person—peanuts are harmless to most but potentially deadly to others.

The label lists all major allergens.

substance

pollen

Floral reproductive grains

peanuts · shellfish · eggs · milk · wheat · soy · tree nuts · sesame · latex · nickel

reaction

anaphylaxis

Severe systemic allergic reaction

wheezing · rash · sneezing · watery eyes · runny nose · angioedema · erythema · congestion · coughing · throat tightness

condition

hay fever

Allergic rhinitis from pollen

conjunctivitis · atopy · dermatitis · sinusitis · urticaria · seasonal allergies

immune

antibody

Protein targeting foreign substances

T-cell · B-cell · cytokine · lymphocyte · leukocyte · interleukin · sensitization · immune response · white blood cells · basophils

treatment

epinephrine

Adrenal stress hormone

bronchodilator · immunotherapy · desensitization · nasal spray · eye drops · avoidance · elimination diet · skin prick test · blood test · patch test

Categories
Opposites
immune response trigger

allergenimmunosuppressant

Agent reducing bodily defenses

antihistamine · hypoallergenic · anti-inflammatory · corticosteroid · safe food

bodily harm mechanism

allergentoxin

Biological-origin harm agent

poison · pathogen · carcinogen · irritant · venom

physiological effect

allergensoother

What brings relief

emollient · palliative · balm · remedy

Phrases
Family

allergy, allergic, allergist, allergens, allergenic, allergic reaction

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated G