allergy

Body attacks harmless

An allergy is an immune system reaction to a substance that's harmless to most people—pollen, peanuts, pet dander, bee stings.

The body treats the substance as a threat, producing symptoms from mild (sneezing, hives) to severe (anaphylaxis).

Figuratively, having an allergy to something means strong aversion: He seems to have an allergy to hard work.

reaction

hives

Raised itchy skin reaction

  • swellingAbnormal tissue enlargement
  • itchingIrritating skin sensation
  • rashHeedless or skin irritation

sneezing · wheezing · anaphylaxis · redness · eczema · rhinitis · conjunctivitis · bronchospasm · urticaria · angioedema

allergens

pollen

Floral reproductive grains

  • dustFine settled particles
  • moldForm-giving container
  • peanutEdible underground legume

shellfish · pet dander · latex · bee sting · gluten · dairy · egg · soy · wheat · fish

treatment

antihistamine

Drug blocking allergic response

decongestant · immunotherapy · desensitization · nasal spray · eye drops · Benadryl · Claritin · Zyrtec · Allegra · nebulizer

immune

histamine

Allergy-response compound

cytokines · antigens · immune response · sensitization · immunotherapy · T-cells · inflammatory response · prostaglandins

intolerance

lactose intolerance

Inability to process milk sugar

gluten sensitivity · cross-reactivity

conditions

hay fever

Allergic rhinitis from pollen

atopy

Categories
Opposites
figurative aversion vs. attraction

allergylove

Intense fond attachment

passion · fondness · affection · affinity · appetite

immune hypersensitivity vs. tolerance

allergytolerance

Willingness to accept difference

immunity · resistance · insensitivity · hyposensitivity · desensitization

Phrases
Family

allergic, allergies, allergists, allergen, allergist, allergically, nonallergic, antiallergy

Familiarity
Top 20,000
Profile
Known to kids · Used worldwide · Timeless · Negative · Everyday, not technical · Rated G