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Allergies and allergy

allergen

noun

a substance that produces an allergic reaction in someone

allergic

adjective

affected by an allergy

allergic

adjective

caused by an allergy

allergy

noun

a medical condition in which you become sick or your skin becomes covered with red marks as a reaction to something you eat, breathe, or touch

anaphylactic shock

noun

a serious medical reaction caused by someone eating or touching something that they are allergic to (=something that makes them sick). Common causes are nuts, eggs, and drugs such as penicillin.

anaphylaxis

noun

anaphylactic shock

antigen

noun

a harmful substance that causes your body to produce antibodies to fight it

hypersensitive

adjective

extremely sensitive to certain substances

hypoallergenic

adjective

unlikely to cause an allergic reaction (=an illness or skin reaction produced in some people by certain substances)

intolerance

noun

if someone has an intolerance to a particular food or drink, they cannot eat it or drink it because it makes them sick

intolerant

adjective

unable to eat a particular type of food because it makes you sick

irritant

noun

a substance that hurts a part of your body and makes it painful, red, or swollen

irritate

verb

to hurt a part of your body, making it painful, red, or swollen

pollen count

noun

a measurement of how much pollen there is in the air at a particular time, often given on weather reports in the summer for people who are allergic to pollen

react

verb

to become sick when you eat a particular food or take a particular drug

reaction

noun

a bad effect on your body caused by food, medicine, or another substance

sensitivity

noun

a tendency to have a strong physical reaction to something

sensitize

verb

to make someone’s body become too sensitive to something such as a particular food or plant, often by eating or touching it

tolerate

verb

to be able to eat a particular food or to take a particular treatment with no bad effects

hypersensitivity

noun

pre-cation

a paid holiday given to a new employee before they start their job

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