what is medical allergies
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Allergy Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes little problem in most people.
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- Allergen: A substance that can cause an allergic reaction. Common allergens include ragwee... Allergic reaction: The hypersensitive response of the immune system of an allergic indiv... Allergic rhinitis: Medical term for hay fever, an allergic reaction that mimics a chronic ... Allergy: A misguided reaction to foreign substances by the immune system, the body system ... Allergy shots: See Allergy desensitization.
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- An allergy is the result of an overreaction of the immune system in the presence of an allergen, no matter whether that allergen is real or perceived An allergy is the result of an overreaction of the immune system in the presence of an allergen, no matter whether that allergen is real or perceived
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- Full Definition of ALLERGEN. : a substance (as pollen) that induces allergy. — al·ler·gen·ic \ˌa-lər-ˈje-nik\ adjective.
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- An allergy is an abnormally high sensitivity to a specific substance, such as dust, pollens, foods, or drugs. Symptoms of allergies commonly include inflammation, sneezing, itching, and skin rashes.n allergy is an abnormally high sensitivity to a specific substance, such as dust, pollens, foods, or drugs. Symptoms of allergies commonly include inflammation, sneezing, itching, and skin rashes.
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- Medical Definition of ALLERGIC RHINITIS. : rhinitis caused by exposure to an allergen; especially: hay fever.ADVERTISEMENT. noun. : rhinitis caused by exposure to an allergen; especially: hay fever.efinition of ALLERGIC RHINITIS. : rhinitis caused by exposure to an allergen; especially: hay fever. ADVERTISEMENT. noun. : rhinitis caused by exposure to an allergen; especially: hay fever.
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- On a general level, histamine is a chemical neurotransmitter produced by the body during an allergic reaction, most noticeably causing skin, nose, throat and lung irritation (itchiness, redness, swelling, rash, cough and flem, mucosa) in response to various allergens: insect bites or topical irritants, dust pollen, food allergies.
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- Full Definition of ALLERGEN. : a substance (as pollen) that induces allergy. — al·ler·gen·ic \ˌa-lər-ˈje-nik\ adjective. — al·ler·ge·nic·i·ty \ˌa-lər-jə-ˈni-sə-tē\ noun. See allergen defined for English-language learners.
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Hay fever and perennial allergic rhinitis Hay fever, otherwise known as seasonal allergic rhinitis, is an allergic reaction to airborne substances such as pollen that get into the upper respiratory passages – the nose, sinus, throat – and also the eyes.
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- Allergic rhinitis, often called allergies or hay fever, occurs when your immune system overreacts to particles in the air that you breathe-you are allergic to them. Your immune system attacks the particles in your body, causing symptoms such as sneezing and a runny nose.
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Allergy (Allergies) The most common allergic diseases are described, including allergic rhinitis (nasal allergies), allergic conjunctivitis (eye allergies), allergic asthma, urticaria (hives), and food allergies.
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Learn About Allergies The topic of allergies has become routine in our lives, and certainly most everyone has an idea of what an allergy is. Allergies are so common a subject in fact, it seems acceptable to discuss your allergies at a cocktail party with strangers. An allergy is an abnormal reaction by a person's immune system against a normally harmless substance.
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Drug allergies URL of this page: //medlineplus.gov/ency/article/000819.htm. Drug allergies are a group of symptoms caused by an allergic reaction to a drug (medicine). A drug allergy involves an immune response in the body that produces an allergic reaction to a medicine. The first time you take the medicine, you may have no problems.
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What an Allergist Can Do for Your Child An allergist/immunologist is a medical doctor with specialty training in the diagnosis and treatment of allergic diseases, asthma, and diseases of the immune system.
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- Seasonal allergies are allergies which occur at certain times of the year from a sensitivity to pollens from trees, grasses, or weeds. The pollen from these plants is very small and light and can be carried by the wind hundreds of. miles, and easily enters the nasal passages and airways. Affected individuals will develop allergy or asthma.
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- Published on Aug 24, 2013. Spanish for Beginners-I will teach you every single letter and sound in the Spanish alphabet. From the A to the Z in Spanish. You will learn how to pronounce Spanish letters.With this lesson you will never say the H because the the H is silent in Spanish.panish for Beginners-I will teach you every single letter and sound in the Spanish alphabet. From the A to the Z in Spanish.
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- What are Allergies and Its Symptoms. An allergy is a heightened sensitivity to a foreign substance (called an allergen) that causes the body's defense system (the immune system) to overreact when defending itself. Normally, the immune system would only react if a harmful substance, such as bacteria, attacks the body.
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Overview Definition. Pet allergy is an allergic reaction to proteins found in an animal's skin cells, saliva or urine. Signs of pet allergy include those common to hay fever, such as sneezing and runny nose. Some people may also experience signs of asthma, such as wheezing and difficulty breathing.
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Food Allergies and Food Intolerance A food allergy, or hypersensitivity, is an abnormal response to a food that is triggered by the immune system. The immune system is not responsible for the symptoms of a food intolerance, even though these symptoms can resemble those of a food allergy.
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- At Mayo Clinic, we take the time to listen, to find answers and to provide you the best care. Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies.
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Pollen Allergies What Is a Pollen Allergy? Pollen is one of the most common causes of allergies in the United States. Pollen is a very fine powder produced by trees, flowers, grasses, and weeds in order to fertilize other plants of the same species. Many people have an adverse immune response when they breathe in pollen.
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Allergic Rhinitis - Topic Overview What is allergic rhinitis? Allergic rhinitis, often called allergies or hay fever, occurs when your immune system overreacts to particles in the air that you breathe-you are allergic to them. Your immune system attacks the particles in your body, causing symptoms such as sneezing and a runny nose.
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Translations for allergy and immunology Allergy and Immunology is a medical specialty on the diagnosis, treatment, and management of diseases and medical conditions involving the immune system.The field of Allergy and Immunology covers a wide variety of conditions, from allergies brought on by environmental factors, food and drug, etc. to autoimmune diseases and AIDS.
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allergy allergy. n, pl-gies. 1. (Pathology) a hypersensitivity to a substance that causes the body to react to any contact with that substance. Hay fever is an allergic reaction to pollen. 2. aversion: he has an allergy to studying.
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About Allergy An allergy is the response of the body's immune system to normally harmless substances, such as pollens, foods, and house dust mite.
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Top 30 Doctor insights on: Duration Of Allergic Reactions Allergies (Definition) 1  Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and can be very serious.
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Allergies Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or to a food that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies. When you have allergies, your immune system makes antibodies that identify a particular allergen as harmful, even though it isn't. When you come into contact with the allergen, your immune system's reaction can inflame your skin, sinuses, airways or digestive system.