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Allergies, Blood & Immune Systems

Allergies, blood and immune system – articles and advice

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Features and advice on living with allergies, blood conditions and immune system problems. For trusted reference, see our Patient Information Leaflets on allergies and immune health.

Unhealthy young man has blockage, blows nose, suffers from allergy symptoms, covers nose with handkerchief, has swelling red eyes, sneezes after smelling exotic plant.

Allergies, blood and immune system

Managing hay fever and asthma: tips to survive pollen season

by Victoria Raw

Fresh spring blooming branches tree and mock up white nasal spray bottle on pastel green background.

Allergies, blood and immune system

Check pollen levels in your area

by Thomas Andrew Porteus, MBCS

Surgical gloved hand holding test tubes filled with blood against a purple background

Tests and investigations

NHS to roll out world-first blood test for cancer

by Lawrence Higgins

The foods to avoid if you have a soy allergy

Allergies, blood and immune system

Which foods should you avoid if you have a soy allergy?

by Emily Jane Bashforth

Allergies

Find out about allergies, including typical symptoms, common allergies, when to get emergency medical help and allergy testing and treatments.

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Food allergy and intolerance

A food allergy is a harmful immune system response, causing symptoms like swelling, wheezing, or rash to appear quickly, while an intolerance is a digestive issue that does not involve the immune system and typically causes slower-developing symptoms like bloating, gas, or stomach pain.

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Hay fever

Hay fever, or allergic rhinitis, is a common allergy caused by pollen that results in symptoms like sneezing, a runny or blocked nose, and itchy, watery eyes.

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Blood and blood disorders

Your blood keeps every part of your body alive and well. Discover how it works, what common disorders exist, and when to get things checked.

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Blood tests

Blood tests are laboratory analyses of blood samples used to check general health, diagnose medical conditions, monitor ongoing diseases, and evaluate how well organs are functioning.

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The immune system

Your immune system is your body’s personal bodyguard. Learn how it protects you, what weakens it, and what to do when it’s not working properly.

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