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ALLERGEN in Medical Dictionary

Allergic reactions

... sensitivities to a specific substance, called an allergen , that is contacted through the skin , inhaled ... Most reactions happen soon after contact with an allergen . An allergen is a trigger that causes the reaction after ...

Allergen

... allergen Definition: An allergen is a substance that can cause an allergic reaction. allergen s are substances that, in some people, the ...

Allergic rhinitis

... rhinitis is usually triggered by indoor allergen s such as house dust mite and pet skin flakes. ... pollen s of trees, grass , and weeds. Other allergen s cause hay fever all year. These year-round ... an allergic individual encounters an airborne allergen such as pollen , mold , dust mites or animal ...

Allergy

... cause this sensitivity or reaction are called allergen s. Allergy symptoms are severe enough that ... substance. Allergy shots, also known as allergen immunotherapy, is a way of desensitizing the ... so that it stops reacting so strongly to certain allergen s. Allergy Testing The information ...

Allergies

... Allergies What are Allergies ? What is an allergen ? Symptoms What Allergy tests are available? ... things that cause allergy symptoms are called allergen s. Allergies are diagnose d by your history ... Nasal allergies refer to the interaction of allergen s with cells within the lining of the nose. What ...

Allergy testing

... specific medical conditions. The particular allergen s to which a person is sensitive can be ... by allergy testing to determine the precise allergen s responsible. Injection s involve very small but gradually increasing amounts of allergen , over several weeks or months, with periodic ...

Anaphylactic shock

... and sometimes life-threatening reaction to an allergen (the items that your child is allergic to are called allergen s). It is a medical emergency , in most cases. ... of exposure an allergy -causing substance ( allergen ). Anaphylaxis also is called anaphylactic ...

Anaphylaxis

... and sometimes life-threatening reaction to an allergen (the items that your child is allergic to are called allergen s). It is a medical emergency , in most cases. ... with something you are allergic to (called an allergen ). Symptoms of the reaction usually start within ...

Contact dermatitis

... Some of these substances, which are called allergen s, are harmless to most people. Contact ... , contact dermatitis develops only where the allergen has touched the child's body. Contact ... that appears after the skin is exposed to an allergen , such as metal, rubber, some cosmetics or ...

Dermatitis

... it can also be a foreign substance, known as an allergen . Dermatitis , also called eczema , is an ... Some of these substances, which are called allergen s, are harmless to most people. Dermatitis , ... pilaris ') and may be caused by a variety of allergen s. It often starts in childhood and tends to run ...

Histamine

... released from certain cells in response to allergen s, associated with the development of allergic ... are related to allergic reactions . Inhalant allergen s may be a cause (including perfume, house dust, ... of the allergic reaction by injecting the allergen , after which the sufferer is no longer ...

Intradermal

... inadvertently result in the injection of the allergen into the circulation , with an increased risk ... test, a needle is used to inject the allergen solution deeper into the skin . The skin ... the intradermal test, a very small amount of allergen is injected under the skin . TUBERCULIN ...

Mold

... by releasing airborne spores . Some common allergen s in the environment are pollen , mold , house ... with an irritant (such as cigarette smoke), allergen (such as dust, mold or pollen ) or some other ... is cockroach and mice. That's most of the indoor allergen s. PAUL MONIZ: Not a pretty mix, is it? What ...

Pollen

... their way into the air to cause symptoms. allergen s, such as pollen , cockroaches and molds. Air ... , drugs or chemicals may cause wheezing . allergen s include pollen s, dust, dust mites, mold ... the circulatory system. Anything can be an allergen . Common dust, pollen , plants, medications, ...

Rhinitis

... pollen , dust or other airborne substances ( allergen s ). Rhinitis , non-allergic; Idiopathic ... that occurs in the nose when airborne irritants ( allergen s) trigger the release of histamine . Histamine ... rhinitis is usually triggered by indoor allergen s such as house dust mite and pet skin flakes. ...

Scratch test

... skin to identify the allergy substance (the allergen ) that is the trigger for an allergic reaction. ... most commonly performed, tiny drops of purified allergen extracts are pricked or scratched into your ... of suspected allergy -causing substances ( allergen s) on the skin (usually the forearm, upper arm, ...

Sneezing

... as 1 to 2 minutes after you are exposed to an allergen . A runny nose ( rhinorrhea ). Sneezing ... room? Cough ing in the kitchen? Many common allergen s occur primarily indoors and can make your ... caused by the body's reaction to a substance ( allergen ) that is inhaled, touched or eaten. Up to ten ...

Spores

... painless , itchy pustules on the skin . allergen s include pollen s, dust, dust mites, mold ... of B. anthracis. with increasing amounts of allergen s to desensitize the person's immune system . ... that are caused by sensitivity to indoor allergen s such as dust mites, mold spores and ... ...

Allergic conjunctivitis

... to an allergy -causing substance such as pollen . In response to allergen s, your body produces an antibody called immunoglobulin E (IgE). ... hay fever , you probably react to one (or more) of the following airborne allergen s: ... MARJORIE SLANKARD, MD: The candida tes for immunotherapy would ...

Conjunctivitis

... Causes Conjunctivitis is caused by infection or irritants, including allergen s. Conjunctivitis See all Pictures & Images Overview, Causes, ... to an allergy -causing substance such as pollen . In response to allergen s, your body produces an antibody called immunoglobulin E (IgE). ...

Desensitization

... repeatedly exposed to small amounts of an allergy causing substance, an allergen , in order to reduce the allergic reaction. Allergy desensitization ... For severe hay fever cases, desensitization injection s for known allergen s may be administered. Other treatment , including surgery , may be ...

Eosinophil

... back to top ... Eosinophil s are white blood cells that react to allergen s (substances that cause an allergic response) and help fight infections ... greatly increased. Eosinophil ia is often a response to infection or allergen s (substances that cause an allergic response). EP-2101 ... CBC ...

Hay fever

... Medication Allergy (Allergic Reaction to a Medication) ... Airborne allergen s such as mold and the pollen of trees, grass es, and weeds cause ... allergies like hay fever , stay indoors during days when airborne allergen s are high. If possible, keep the windows closed and use an air ...

Immunoglobulin

... make too much of a single type of immunoglobulin . In response to allergen s, your body produces an antibody called immunoglobulin E (IgE). This ... histamine release) in your blood to various environmental and food allergen s. RF is an antibody that attaches to a substance in the body called ...

Injury

... injury to surrounding tissue - the visible signs of an allergy . An allergen can be almost anything which acts as an antigen to stimulate such an immune response . Common allergen s Food . Pills Traditionally used for abrasion s, fast relief of ...

Nebulizer

... taken by mouth. During inhalation testing, increasing amounts of an allergen are inhaled through a nebulizer , a device that uses a face mask or mouthpiece to de liver the allergen in a fine mist (aerosol). Some need to be used with a nebulizer . (A ...

Percutaneous

... percutaneous and intradermal . In percutaneous or prick testing, allergen solutions are placed on the skin , and the skin is then pricked with a needle, allowing the allergen to enter the skin and become exposed to mast cells. Diagnosis of ...

Poison ivy

... Allergic Reactions Allergic Reaction to a Medication Allergies ... allergen s, or allergy -causing substances, can be airborne substances (e.g., ... placing a series of adhesive patches on the skin containing potential allergen s, or allergy -causing substances. Search Top Summer Searches on ...

Saliva

... The allergy is more usually an immune reaction to a protein (an allergen ) found in the saliva , dander (dead skin flakes) or the urine of an animal. The allergen gets carried in the air or in dust on very small, invisible particles. ...

Seasonal allergies

... Syndrome Sore Throat ? Could Be Strep Throat ... The most common allergen s in seasonal allergies are windblown pollen s from trees, grass es, ... allergies like hay fever , stay indoors during days when airborne allergen s are high. If possible, keep the windows closed and use an air ...

Shellfish

... is allergic to. The items that your child is allergic to are called allergen s. Shellfish Poisoning Paralysis Overview Shellfish poisoning ... ly cooked eggs, luncheon meats and hot dogs. The most common food allergen s involved in food allergy are shellfish , milk , fish, soy , wheat ...

Urine

... The allergy is more usually an immune reaction to a protein (an allergen ) found in the saliva , dander (dead skin flakes) or the urine of an animal. The allergen gets carried in the air or in dust on very small, invisible particles. ...

Acute bronchitis

... bronchitis is usually caused by infectious agents such as bacteria or virus es. It may also be caused by physical or chemical agents -- dusts, allergen s, strong fumes -- and those from chemical cleaning compounds, or tobacco smoke. acute exacerbation of chronic bronchitis , secondary ...

Antibody

... HIV infection by using two different types of antibody tests, ELISA and Western Blot. A person's immune system believes that the invading allergen s are dam aging and in response the body produces an antibody ("IgE") to attack them. All of the plasma cells descended from a single B cell ...

Atopy

... of children with asthma . Allergic reactions occur only in people who have a condition called atopy "a sensitivity or susceptibility to allergen s. In atopy there is an excessive reaction by the immune system producing inflamed, irritated and sore skin . Associated atopic conditions ...

Autoimmune Diseases

... , including the following: Thyroiditis Type 1 diabetes Ulcerative colitis Hemolytic anemia Proliferative glomerulonephritis ... allergen s (e.g., foods , pollen s, pet dander, insect stings) Autoimmune diseases Infections Irritants (e.g., cosmetics) Other factors (e.g., extremes ...

Bee stings

... is about one-quarter of the number that die from bee stings . Anaphylaxis occurs immediately or at most within 2 hours of exposure to the allergen . Treatment is an epinephrine injection , which usually stops the reaction. Those who are allergic to bee stings or certain foods should ...

Bends

... via the optic nerve to the brain where the image is formed. The cornea is dome shaped. In one hand , you hold a vial containing a suspected allergen while the practitioner bends your opposite arm to measure muscle strength. A decrease in strength is considered a sign of allergy . Cyto toxic ...

Boric acid

... Borax ( Sodium Borate Overdose) Borderline Personality Disorder Boric Acid Boric Acid ( Sodium Borate Overdose) ... If cockroach allergen is causing asthma attacks, kill the roaches (using poison , traps, or boric acid rather than chemicals). Take care not to leave food or ...

Bronchi

... of asthma and allergies . Preventing Allergies in Children ... An asthma attack may be brought on by any of the previously mentioned allergen s or by infections in the sinus es or bronchi al tubes. Typically, it results in nothing more than that bothersome cold , with half of the ...
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