Allergies

The Respiratory system

and carbon dioxide between an organism and the environment.

The respiratory system is involved in the intake and exchange of oxygen

Dust, mold and pet dander are common triggers for allergies that affect the respiratory system

An allergy is an overreaction of the immune system to a substance that's harmless to most people. But in someone with an allergy, the body's immune system treats the substance (called an allergen) as an invader and over reacts, causing symptoms that can range from annoying to serious or life threatening.

What is an allergy?

5 symptoms of allergies

Sneezing

Red watery eyes

Hives

Swollen body parts

Itchiness

Black eyes

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Number of people that have allergies to...in millions

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Animals have allergies too

Cat allergy symptoms The most common signs and symptoms of allergies include:

*persistent scratching, licking and skin chewingface and ear rubbing

skin patches, hair loss and foul odourcoughing, sneezing, watery eyes and runny nose

frequent vomiting or diarrhea

Dog allergy symptoms

* coughing and wheezing

* red, itchy eyes

* runny, itchy, stuffy nose

* sneezing

• Most people are allergic to pollen

• You may need

• Or

• Or maybe

Blue to the sky orange to the thigh

This is an epipen

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