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Allergies

Immune SystemvariableVery Common

Also known as: Allergic Rhinitis, Hay Fever, Seasonal Allergies

Over 400 million people with allergic rhinitis

affected Globally

Anaphylaxis causes 1,500 deaths/year in the US

death Rank

Can develop at any age, often in childhood

age Range

No - but reactions are manageable

preventable

Chronic - lifelong in most cases

duration

Allergies occur when the immune system overreacts to a normally harmless substance (allergen) such as pollen, dust mites, pet dander, or certain foods. The body produces antibodies that trigger inflammation in the sinuses, airways, skin, or digestive system. While most allergies are mild, severe allergic reactions (anaphylaxis) can be life-threatening.

Who's at Risk?

Family history of allergies or asthma

Children (allergies often develop in childhood)

Living in developed countries

Reduced early childhood microbial exposure

Asthma or eczema patients

Urban environments

This information is for educational purposes only. It is not medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.

Related Conditions

Asthma Bronchitis Acne Eczema Food Poisoning

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