Our Allergy & Immunology Services
From first diagnosis to long-term management, Bytown Allergy offers the full spectrum of specialist care — for patients of all ages, by physician referral.
Appointments at Bytown Allergy are by physician referral. Please ask your family doctor or specialist to send a referral to our clinic.
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Precision diagnosis for lasting relief
Allergy Testing
Identifying your specific allergens is the essential first step toward effective treatment. Our allergists use a combination of evidence-based testing methods to build a complete picture of your immune sensitivities.
- Skin prick testing (SPT) for environmental and food allergens
- Intradermal testing for insect venom and drug allergies
- Specific IgE blood testing (RAST/ImmunoCAP)
- Patch testing for contact dermatitis
- Component-resolved diagnostics for precise food allergy profiling
Long-term desensitization, not just symptom control
Allergen Immunotherapy
Immunotherapy is the only treatment that addresses the underlying cause of allergic disease. By gradually exposing the immune system to increasing doses of allergen, we can achieve lasting tolerance and reduce or eliminate the need for daily medications.
- Subcutaneous immunotherapy (allergy shots) for environmental allergens
- Sublingual immunotherapy (SLIT) drops and tablets
- Venom immunotherapy for bee, wasp, and hornet sting allergy
- Rush and cluster protocols for accelerated build-up
- Ongoing monitoring and dose adjustment throughout treatment
From diagnosis to desensitization
Food Allergy Management & Oral Immunotherapy
Food allergies can be life-altering — and sometimes life-threatening. Our specialists provide thorough evaluation, risk stratification, and individualized management plans. We also offer Oral Immunotherapy (OIT), a structured desensitization program that can meaningfully reduce the risk of severe reactions to foods like peanut, tree nuts, milk, and egg.
- Oral Immunotherapy (OIT) — gradual, supervised desensitization to food allergens
- Oral food challenges (OFC) in a supervised clinical setting
- Food allergy diagnosis and risk assessment
- Personalized emergency action plans and epinephrine auto-injector training
- Guidance on food labelling, cross-contamination, and safe eating
Oral Immunotherapy (OIT)
OIT is a clinically proven treatment where patients consume gradually increasing doses of a food allergen under medical supervision. Over time, this builds tolerance — reducing the risk of accidental reaction and improving quality of life for patients and families. We offer OIT for peanut, tree nuts, milk, egg, and other foods.
Breathe easier with expert management
Asthma & Respiratory Allergy
Asthma and allergic rhinitis are among the most common chronic conditions in Canada. Our team provides comprehensive evaluation, spirometry, and individualized treatment plans to help patients achieve optimal control and quality of life.
- Spirometry and pulmonary function testing
- Diagnosis and classification of asthma severity
- Allergic rhinitis and rhinosinusitis management
- Biologic therapy for severe or difficult-to-control asthma
- Nasal polyp evaluation and management
Targeted care for chronic skin conditions
Skin Allergy & Eczema
Eczema, hives, and contact dermatitis are often rooted in immune dysfunction. Our allergists work to identify triggers, optimize skin barrier management, and provide evidence-based treatments — including newer biologic options for severe cases.
- Atopic dermatitis (eczema) evaluation and management
- Chronic urticaria (hives) and angioedema workup
- Patch testing for contact allergen identification
- Biologic therapy (dupilumab and others) for severe eczema
- Coordination with dermatology when needed
Clarifying reactions to ensure safe treatment
Drug Allergy Evaluation
Drug allergy labels — particularly to penicillin and other antibiotics — can limit treatment options unnecessarily. Our specialists perform structured evaluations to confirm or de-label drug allergies, ensuring patients have access to the safest and most effective medications.
- Penicillin and beta-lactam allergy evaluation and de-labelling
- NSAID and aspirin hypersensitivity assessment
- Local anaesthetic allergy testing
- Drug provocation challenges in a monitored setting
- Rapid drug desensitization protocols when required
Protection from potentially life-threatening reactions
Insect Sting Allergy
Systemic reactions to insect stings can be severe and unpredictable. Venom immunotherapy is highly effective at reducing the risk of future anaphylaxis and can be life-saving for at-risk patients.
- Venom skin testing and specific IgE measurement
- Risk stratification for future sting reactions
- Venom immunotherapy (bee, wasp, yellow jacket, hornet)
- Epinephrine auto-injector prescription and training
- Long-term follow-up and treatment duration guidance
Evaluation and management of immunological disorders
Immune Deficiency
Recurrent or unusually severe infections may signal an underlying immune deficiency. Our team evaluates both primary and secondary immunodeficiency disorders and coordinates appropriate management, including immunoglobulin replacement therapy when indicated.
- Comprehensive immune function testing
- Primary immunodeficiency (PID) evaluation in adults and children
- Common variable immunodeficiency (CVID) management
- Subcutaneous and intravenous immunoglobulin (SCIG/IVIG) therapy
- Coordination with infectious disease and hematology specialists
Clinical Trials at Bytown Allergy
Bytown Allergy and Associates participates in clinical research through the Canadian Allergy Research and Education (CARE) Corp. Our clinic conducts clinical trials investigating new treatments, therapies, and diagnostic approaches in allergy and immunology — giving eligible patients access to cutting-edge care while advancing the field for future generations.
If you are interested in learning more about active trials or potential eligibility, please speak with your referring physician or contact our clinic directly.
Visit CARE Corp WebsiteAbout CARE Corp
The Canadian Allergy Research and Education Corp is a national network dedicated to advancing allergy and immunology research across Canada. Through partnerships with leading clinics like Bytown Allergy, CARE Corp coordinates multi-centre trials that shape the future of allergic disease treatment.
Ready to See a Specialist?
Ask your family doctor or specialist to send a referral to Bytown Allergy and Associates. Our team will contact you to schedule your appointment.