One of the mysteries of the English language finally explained.
A substance that causes an allergic reaction.
- ‘The goal is to desensitize you to specific allergens and decrease your need for medications.’
- ‘Wherever possible, the most effective way of treating allergies is to avoid all contact with the allergen causing the reaction.’
- ‘Your allergic reaction happens when your body's immune system mistakes the allergen for a harmful invader.’
- ‘Gradually your body learns to accept the allergen as the harmless substance it is.’
- ‘First, allergic reactions are caused by allergens, the three most common ones being dust and mites, pollen and nuts.’
- ‘Allergies are caused by the body's immune system reacting to allergens as if they were harmful.’
- ‘Future exposure to the same allergens will cause the reaction to happen again.’
- ‘Once a person is sensitized to an allergen or chemical, he or she may develop asthma.’
- ‘Substances that are normally harmless could act as allergens and trigger a reaction in certain people.’
- ‘In such an enclosed environment, allergens from one food can spread to another.’
- ‘Eliminate any known allergens such as certain foods, dust, or pet dander from your household.’
- ‘If you take away the allergens that were driving it initially, the inflammation is likely to continue.’
- ‘During allergy seasons, the local news broadcasts usually tell you what allergens are in the air.’
- ‘If allergens in the air are an asthma trigger, pollutants can make the lungs even more sensitive to them.’
- ‘It is well known that vacuum cleaner bags capture large particles but can emit allergens that are too small to be collected in the bag.’
- ‘Your doctor may take tests to see what allergens are causing the hay fever symptoms.’
- ‘Avoid things that could make symptoms worse, such as air pollution and allergens.’
- ‘The rash usually clears if the allergen is no longer in contact with the skin, but recurs with any slight contact with it again.’
- ‘The next time you're exposed to the allergen, your immune system launches an allergic reaction.’
- ‘Whether your eczema is due to an irritant, such as detergent, or due to an allergen, such as nickel, care and treatment of your skin is the same.’
Early 20th century: blend of allergy and -gen.
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