Medical Dictionary: Allergic


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Medical dictionaries: Medical dictionary, Medical malpractice dictionary, Medical Acronymns/Abbreviations
Allergic: Another name for Allergies.
Allergic (condition): Immune system over-reaction to various substances.
Allergic (condition): An allergy is an over-reaction by the immune system to a particular substance. Although the term is often used to refer to dust allergies or airborne allergies (pollen allergies/hay fever), any possible substance can cause allergic reactions in different people. Thus there are also animal allergies, dust allergies, food allergies (e.g. peanut allergies, shellfish allergies), drug allergies (e.g. penicillin allergy), insect sting allergies, mold allergies, and many others. Allergies causing skin conditions may result in eczema or dermatitis. The effect of an allergy ranges from mild to very severe, and prompt profesional medical advice is required. Many types of allergy are difficult to diagnose and thus may be both over-diagnosed and under-diagnosed at different times.

Allergic: An allergy is a specific immunologic reaction to a normally harmless substance, one that does not bother most people. People who have allergies often are sensitive to more than one substance. Types of allergens that cause allergic reactions include pollens, dust particles, mold spores, food, latex rubber, insect venom, or medicines. 1

More information on medical condition: Allergies:



Footnotes:
1. excerpt from Something in the Air Airborne Allergens: NIAID

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