1. Glossary
  2. Allergen

Allergen

An allergen is a substance that can cause an allergic reaction in certain people. Common allergens include pollen, pet dander, certain foods, dust mites, and insect stings. These substances are usually harmless to most people, but for those with allergies, their immune system mistakenly identifies them as threats.

When someone with an allergy encounters an allergen, their immune system reacts by releasing chemicals like histamines, leading to symptoms such as sneezing, itching, hives, or even more severe reactions like difficulty breathing. Allergies can vary from mild to severe and can be managed by avoiding known allergens or using medications.

Understanding and identifying allergens is crucial for preventing allergic reactions and maintaining health, especially for those who suffer from allergies. If you suspect you have allergies, consulting a healthcare professional can provide guidance on testing and effective management strategies.

Other glossary terms

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Acute (sudden onset or short duration)

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Allergen

An allergen is a substance that can trigger an allergic reaction in certain people.

Allergies

Allergies are the immune system's overreaction to typically harmless substances such as pollen or certain foods, causing symptoms from sneezing to potential severe reactions.

Allergist

An allergist is a medical specialist who diagnoses and treats allergies and related immune system reactions.

Allergy

An allergy is an immune system response to a harmless substance, mistakenly identified as a threat.

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ALP (alkaline phosphatase) is an enzyme found in the body that helps in protein breakdown, with its levels indicating liver and bone health.

Alprazolam

Alprazolam is a medication used to treat anxiety and panic disorders by calming the brain through its effects on natural chemicals in the body.

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