Common Allergy Symptoms


IgE Environmental Allergy


Itching of the nose, eyes or mouth

Runny, stuffy nose

Watery, red or swollen eyes

IgE Food Allergy

Tingling in the mouth

Swelling of lips, tongue, face or throat




IgE Insect Venom Sting Allergy

Large area of swelling at the sting site

Itching or hives all over the body

Cough, chest tightness, wheezing

Shortness of breath




Sensitivity Symptoms IgG + C3D Complement Diarrhea






Abdominal pain

Runny nose


Flushing of the skin

We can assist in recommending potential next step options for treatment including:

Habitual - Symptom Suppression

Allergen Avoidance

Air Purifier

Over the Counter - Symptom Suppression

Oral antihistamines


Intranasal Corticosteroids

Intranasal Antihistamines

Nasal Saline Irrigation


Prescription - Treatment ENVIRONMENTAL ONLY Sublingual (SLIT) Immunotherapy Subcutaneous (SCIT) Immunotherapy


Western Allergy compounds sublingual and subcutaneous immunotherapy for patients across Canada. Treatment can take 3-4 years for allergen desensitization, however symptoms can decrease within the initial months of treatment.

Learn More Here

AllerDetect is a new, comprehensive dry blood spot diagnostic test for both IgE allergies and IgG+C3D food sensitivities.


What is IgE?

Immunoglobulin E (IgE) are antibodies produced by the immune system. If you have an allergy, your immune system overreacts to an allergen by producing IgE antibodies that cause allergic reactions


What is IgG?

Immunoglobulin G (IgG) are the most abundant type of antibody, is found in all body fluids and protects against bacterial and viral infections. IgG is present with any exposed allergen but only problematic if abnormal levels of C3D is present. High IgG levels on their own can give false positives and incorrect test results.


What is C3d?

C3d a component of blood proteins that AllerDetect additionally tests for. When attached to an antigen along with an IgG antibody, there is an increase of inflammation resulting in sensitivity symptoms


Why can't I test myself?

Testing is a simple process however the test must be ordered by a medical professional who will use the reporting to complement a formal diagnosis.


Is this covered by insurance?

Most extended health coverage will cover allergy testing. Please check with your insurance provider.


Why do I need to discuss the results with my Healthcare professional?

AllerDetect provides thorough empirical data relating to the diagnostic of IgE allergies and IgG+C3D Sensitivities. To properly use the report. Patient history and symptoms should be taken in conjunction with report consultation by a healthcare provider.


Where can I get the test done?

AllerDetect is offered across Canada, Australia and New Zealand. Your healthcare provider can contact us directly for complementary collections kits.


When was AllerDetect introduced?

AllerDetect/Tru Test was introduced at the American Academy of Allergy, Asthma and Immunology in 2018.


How often should a person be tested?

Testing can be done once, or annually after an initial benchmark test. If a patient is undergoing immunotherapy, testing can determine efficacy of treatment, or monitor changes in allergic and sensitivity response.


Where can I get more information?

Please visit for more information including white and clinical papers.


How is it different from other tests?

AllerDetect tests for IgE allergies similar to scratch testing. Other IgE blood draws and scratch testing take no account of IgG blocking potential which AllerDetect provides. Most other food sensitivity tests only cover IgG, exposure immunoglobins which by themselves heavily limit the accuracy of food sensitivity diagnostics as they have false positives. Our test includes C3d + IgG which helps to eliminate false positives. False positives can result in malnutrition and serious dietary issues. What is the difference between Allergy and Sensitivity tests? Allergy testing from AllerDetect or Scratch Testing indicates damaging immune response by the body to a substance, especially pollen, animal dander, a particular food, moulds, or dust mite, to which it has become hypersensitive. Close contact with a very small amount of some allergens such as peanut and venom can potentially trigger a life-threatening reaction in some instances. With food sensitivity testing results can pinpoint offending foods that can cause intestinal gas, painful abdominal cramping or diarrhea through inflammation. While the symptoms of a food intolerance or sensitivity may cause extreme discomfort, they are confined to the gastrointestinal tract and are generally not life-threatening.



DLSRAV is Federally (CLIA) approved High Complexity Clinical Laboratory. CLIA #11D2114053. AllerDetect is a division of Western Allergy, Canada’s foremost Allergy, immunotherapy and diagnostics company operating since 1972 See Website for Full List of Tested Allergens.