Allergy Testing

What You Need To Know About Allergy Testing

What Is An Allergy?

An allergy is a condition of having an exaggerated response to an aeroallergen, an otherwise harmless airborne substance.

What Are The Symptoms Of Allergies

  1. Allergic Rhinitis: Commonly known as hay fever, symptoms may include nasal congestion, runny nose and eyes, sneezing, and itching
  2. Allergic Conjunctivitis: When your eyes are exposed to an aeroallergen trigger, you may experience itching, burning, redness, swelling, and excess tear production
  3. Asthma: People with Asthma will often suffer from a worsening in asthma symptoms when exposed to an aeroallergen trigger such as red, swollen airways, thick mucous production, chronic cough, wheezing, and shortness of breath

Know Your Triggers

When an allergic person encounters a trigger such as pollens, spores, moulds, animal dander, house dust or mites, the immune system reacts by releasing chemicals called histamines, which cause allergy symptoms.

Treatment Options

If you suffer from rhinitis, conjunctivitis, or asthma, allergy testing can determine which specific aeroallergens trigger your symptoms. Modern allergy treatment is simple, safe, and effective.

If a clearly identified trigger is found, one treatment option to prevent future symptoms is immunotherapy (allergy shots or drops)

Immunotherapy, taken as either a shot or a drop, is a safe and effective method to prevent repetitive allergic disease and can offer long-lasting relief and even a cure for many people.

Book Your Appointment Today

Allergy Testing appointments are available at the following locations:


C153-240 Sparks, Ottawa
Thursday 1:00pm – 4:00pm
Saturday 12:00pm – 2:30pm

2-1582 Bank Street, Ottawa
Thursday 8:30am – 12:00pm

2573 Baseline Road, Ottawa
Thursday 2:00pm – 7:00pm
Friday 9:30am – 12:00pm

2948 Baseline Road, Ottawa
Monday 10:00am – 2:30pm

4-2150 Robertson Road, Ottawa
Saturday 10:00am – 1:00pm

150 Katimavik Road, Ottawa
Thursday 3:00pm – 6:00pm

Greater Toronto Area

100-2025 Midland Avenue, Toronto
Monday 6:00pm-8:00pm
Friday 1:00pm – 4:00pm

20-1450 O’Connor Drive, East York
Wednesday 10:00 – 12:30pm

1A-545 Steeles Avenue West, Brampton
Tuesday 10:00am – 2:00pm
Wednesday 1:00pm – 5:30pm
Friday 12:15pm – 4:45pm

900 Albion Road, Toronto
Wednesday 9:00am – 12:00pm
Friday 4:30pm – 7:30pm

4700 Keele Avenue, North York
Tuesday 1:00pm – 5:00pm

2077 Lake Shore Boulevard West, Toronto
Friday 9:30am – 12:30pm

13-3355 Hurontario Street, Mississauga
Tuesday 11:00am – 1:00pm
Saturday 1:00pm – 2:00pm

4062 Confederation Parkway, Mississauga
Monday 9:30am – 11:30am
Wednesday 3:00p – 5:00pm

106-1971 Queen Street East, Toronto
Wednesday 10:30am – 12:00pm

What to expect at your appointment

An allergy assessment begins with a questionnaire to document the history of the problem and relevant environmental factors. Once the history is documented a skin prick test is done on the forearm to identify which allergen is causing the problems.

Patients will be asked to complete a Pulmonary Function Test to determine lung function.

15 minutes after the skin prick test is completed, the forearm will be reviewed to evaluate the reaction(s).

The doctor will review the results of your skin test and pulmonary function test to determine what is the best course of action – no further action required, symptomatic treatment, or immunotherapy.

After your appointment: order your immunotherapy

If immunotherapy is determined to be the best course of action, the prescription will be faxed to the pharmacy. The pharmacist will call you to finalize the order and it will be shipped to your preferred location within 6 weeks.

When your immunotherapy serums are received in clinic, we will call you to come in to start your treatment.

Frequently Asked Questions

Do I need a referral?

No. If you are suffering from environmental allergies and would like to be assessed, no referral is necessary. You can book an appointment through your Patient Portal, over the phone, or in person at one of the locations listed above.

Is there anybody who shouldn't have an environmental allergy test?

If you are taking any of the following medications or have any of the following medical conditions:

Beta-blockers (medications ending in “olol”)
Blood-born virus (HIV, Hepatitis etc.)
Asthma that is not well controlled

How often can I be tested?

OHIP covers 1 allergy test per year

How should I prepare for the test?

Bring a list of all medications that you take. 72 hours prior to the appointment, stop taking;

Antihistamines: Claratin, Reactin, Allegra, Benadryl, Clarinex, Aerius, Zaditor, Alocril, Patinol
Decongestants: Cold and Sinus Medications
Tricyclic/Tetracyclic antidepressants: Amitriptyline, Nortriptyline, Amoxapine, Desipramine, Doxepin, Imipramine, Maprotiline, Protriptyline, Trimipramine
Anti-Acids: Pepcid/Famotidine, Axid/Nizatidine, Zantac/Ranitidine, Tagamet/Cimetidine
If possible, avoid taking any puffers on the day of the test.  Wear clothing that you can easily expose your forearms.

What allergens are included in the test?

Inhalants: House Dust, Dust Mites, Cockroac
Animals: Cat, Dog, Guinea Pig, Horse, Birds (mixed feather), Mouse, Rabbit
Moulds: Mould mix, Botrytis, Fusarium, Dreschelera, Phoma, Stemphylium, Smuts, Aspergillus, Alternaria, Cladosporium, Epicoccum, Neurospora, Mucor, Penicillium, Pullularia, Rhizopus
Tree Pollens: Tree mix, Ash, Beech, Birch, Elm, Maple, Oak, Poplar, Sycamore, Willow, Alder
Grass: Grass mix
Weeds: Ragweed mix, Cocklebur, Goldenrod, Marsh Elder, Sage, Dandelion, Kochia, Lamb’s Quarters, Nettle, Pigweed, Plaintain, Russain Thistle, Sorrel

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