Definition of Allergen:

A substance that is capable of producing an allergic response in the body.

Also: Allergens

Topics Related to Allergen

Allergic Conjunctivitis

...the condition
“...When the eyes are exposed to allergens such as pollen, animal dander / saliva, or molds, histamine is released and the blood vessels in the conjunctiva become swollen, resulting in rapid reddening of the eyes, itching and tearing...”

Allergic Rhinitis

...related topic
“Inflammation of the nasal mucous membranes that is caused by specific allergen(s).  It is an allergy characterized by sneezing, itchy and watery eyes, a runny or stuffy nose, coughing and a burning/scratchy sensation of the palate and throat.”
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More topics Related to Allergen

Allergic Rhinitis / Hay Fever

...the condition
“...Allergic rhinitis is inflammation of the inside the nose that occurs when the immune system reacts to allergens in the air as if they were harmful...”
...our question about Diesel exhaust exposure
“Diesel exhaust fumes and ozone can enhance the effects of inhaled allergens or have an effect on immune function.”
...relationship to Allergy to Foods (Hidden)
“The ear, nose, and throat are common target organs for food allergens.  Congestion or inflammation of the nose (rhinitis) may be due to airborne irritants and allergens, but food allergy may be an undiagnosed cause of this common problem.”


...related topic
“Hypersensitivity caused by exposure to a particular antigen (allergen), resulting in an increased reactivity to that antigen on subsequent exposure, sometimes with harmful immunologic consequences.”

Allergy to Foods (Hidden)

...the condition
“...The most common food allergens are dairy, eggs, gluten grains (wheat, oats, rye), corn, beans (especially soy), coffee, citrus, and nuts...”
...our question about Sinus infections / sinus headaches
“The ear, nose, and throat are common target organs for food allergens.  Food allergy may be the undiagnosed cause of sinusitis in some people.”
...recommendation Nambudripad Allergic Elimination Therapy (NAET)
“...Treatment using NAET involves exposing the patient to an allergen and providing acupressure along spinal meridians to eliminate the body's negative response to the substance...”


...related topic
“...The episodes may be triggered by breathing foreign substances (allergens) or pollutants, infection, vigorous exercise, or emotional stress...”
...relationship to Allergy to Foods (Hidden)
“...Food allergens may be found in the bloodstream within circulating immune complexes that trigger the release of immune mediators into the bloodstream...”

Astragalus Root a treatment
“...It may also help allergy sufferers by strengthen the immune system's response to allergens in the environment...”


...related topic
“Genetically predisposed toward developing immediate hypersensitivity reactions to common environmental allergens.”

Bioflavonoid Need

...the condition
“...Flavonoids are referred to as "biological response modifiers" because they help to modify the body's reaction to allergens, viruses and carcinogens...”

Canker Sores (Aphthous Ulcers)

...relationship to Allergy to Foods (Hidden)
“Foods including wheat, oranges, tomatoes, chocolate, nuts, eggplant, tea and cola were dietary allergens that have been found to trigger ulcer initiation...”

Chronic Fatigue / Fibromyalgia Syndrome

...relationship to Immune System Imbalance (TH2 Dominance)
“...This means they over-respond to toxins, allergens, normal bacteria and parasites, and under-respond to viruses, yeast, cancer and intracellular bacteria.”

Consequences of Gallbladder Surgery

...the condition
“...Gallbladder patients just need to thin out their bile, clean up their diet and eliminate food allergens.  Once a gallbladder has been removed, there are things you can do to reduce the consequences...”


...our question about Indoor allergies
“...One is to facilitate an immune response to allergens, and another is to regulate available water...”


...recommendation against Increased Fruit/Vegetable Consumption
“...However, classical food allergens are often not the cause of eczema in adults...”
...recommendation Test for Food Allergies
“...Inhalant allergens such as house dust mite, pets, pollen and cut grass may also cause an acute flare-up of eczema.”

Edema (Water Retention)

...recommendation Test for Food Allergies
“...I often recommend an empirical elimination diet in which common allergens (wheat, milk, eggs, corn, coffee, tea, alcohol, yeast, citrus and sugar) are removed for several weeks...”

Enlarged Lymph Nodes

...the condition
“...A lump caused by an allergic reaction will go away after the allergen is removed...”

Immunotherapy a treatment
“...or corticosteroids) treat only the symptoms of allergic disease, immunotherapy is the only available treatment that can modify the natural course of the allergic disease, by reducing sensitivity to allergens.  Immunotherapy is generally not indicated for food or medicinal allergies...”
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More topics Related to Allergen

Indoor Allergies

...the condition
“...Exposure to any number of different allergens can cause allergy symptoms...”
...our question about Diesel exhaust exposure
“Diesel exhaust fumes and ozone can enhance the effects of inhaled allergens or have an effect on immune function.”


...the condition
“...Other allergens may play a part too...”

Nambudripad Allergic Elimination Therapy (NAET) a treatment
“...Treatment using NAET involves exposing the patient to an allergen and providing acupressure along spinal meridians to eliminate the body's negative response to the substance...”

Nonallergic / Vasomotor Rhinitis

...the condition
“...Vasomotor rhinitis is different from the allergic type because it is not caused by allergens and is sometimes called 'non-allergic rhinitis'...”

Oral Lichen Planus

...the condition
“...Known triggers include ... Allergens such as foods or dental restoration materials...”

Problems Associated With Snoring

...recommendation Air Filtering
“Air filtering and removing other allergens from the bedroom can be useful.”

Rheumatoid Arthritis

...recommendation Dairy Products Avoidance
“...Dairy products – the most common food allergen – are one likely causative factor...”


...the condition
“...Since chronic sinusitis is associated with allergy, long-term control can be dependent on isolation and elimination of the food or airborne allergens which may be contributing to the overall allergic load and correction of the underlying problem which allowed the allergy to develop...”
...related topic
“...Obstinate cases can be caused by chronic sinus infections or the continued exposure to allergens from food, pets or environmental irritants.”

Tendency Toward Allergic Reactions

...the condition
“...An allergic reaction may not occur the first time you are exposed to an allergen, but then occur on subsequent exposures...”

Test for Food Allergies a treatment
“Improvements in laboratory techniques have made blood testing for food and airborne allergens more reliable than they previously were...”

Test for Inhalant Allergies a treatment
“...To determine which specific substances are triggering your allergies, your allergist/immunologist can test your skin or your blood by using tiny amounts of commonly troublesome allergens.  As a general rule, inhaled allergens such as dust mites, tree, grass or weed pollens will produce respiratory symptoms and ingested (food) allergies will produce skin and/or...”

Test Histamine Levels a treatment
“...Histamine levels that are slightly elevated suggest that symptoms may be due to an allergic reaction, although the specific allergens can not be identified through this test...”

Ulcerative Colitis

...recommendation Test for Food Allergies
“As many as 50% of sufferers will improve by avoiding food allergens such as dairy, wheat, corn and eggs.”

Urinary Stress/Urge Incontinence

...recommendation Elimination Diet
“An elimination diet can deal with both food allergens and food irritants which may be causing the irritable bladder.”

Vaginal Dryness

...the condition
“...These include ... soaps, shower gels, deodorants, douches, or other products containing allergens, fragrances or dyes that disrupt the vaginal chemical balance...”


...the condition
“...Sometimes drugs, hidden infections and food allergens increase the level of circulating immune complexes...”

Weakened Immune System

...the condition
“...They help fight certain parasites, infections, allergens and cancers...”
...relationship to Allergy to Foods (Hidden)
“...Many patients report that they suffer from more than one symptom or illness when reintroducing a known food allergen into their diet after a period of abstinence.”

Zeolites a treatment
“ that infectious organisms have a less favorable environment for survival; Trapping protons in the digestive tract, making acid reflux less troublesome; Improving nutrient absorption; Trapping allergens in the blood and digestive tract, thus decreasing symptoms from inhaled and swallowed antigens; Possibly stopping diarrhea through its absorptive action in the intestines; Patients with...”
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