This website and all content Copyright 2017 of Hamilton Allergy Legal Disclaimer | Website Credits

“Allergy shots” or allergy desensitization is a form of desensitizing a patient with allergic disease to their allergen causing their illness. These injections work by influencing your immune system slowly to become tolerant of your known allergy(ies). They are indicated for the treatment of allergic nasal conditions, i.e. hayfever, insect sting allergy and in some mild cases of asthma. There are various types and protocols for administering these injections. The medical terminology for allergen shots is Subcutaneous allergen ImmunoTherapy (SCIT).  

Allergy shots:

You will need to remain in our office for a mandatory 30 minutes monitoring period following your allergy injection. If you feel sick in any way the hour AFTER your injection, especially after leaving the doctor’s office, contact us immediately for instruction.

Injection Wait Time


For patients who have been diagnosed with severe and potentially   life threatening allergic reactions to insect stings,  these allergy injections will significantly reduce the risk of future severe reactions if stung again.  They require weekly build up injections until a maintenance dose is achieved. At that point, injections continue monthly. The usual treatment period is for 5 years.

Insect Immunotherapy

When they Start:

1) Pre-season Tree

2) Pre-season Tree-Grass Mix

3) Pre-season Grass

4) Pre-season Ragweed

Pollen Schedule

These are the traditional allergy injections and require weekly “build up” injections for an average of 14-18 weeks. At that point, a patient reaches their “maintenance” dose, as determined either by the allergy schedule or your reactions. Allergy injections then continue every 3 weeks at the maintenance dose for a duration of 3 to 5 years, depending on a patient’s response.  This method is the closest to a “cure” to a patient’s allergies and is the preferred long term therapy.  

Year long allergy injections for inhalant allergies:

These injections are an alternate to the above year long shots.  They are indicated for the treatment of seasonal allergies to one type of allergen, i.e. grass or ragweed and are usually beneficial for one allergy season at a time. A patient receives a series of 6-8 weekly injections before the known allergy season.

Pre-seasonal allergy injections for inhalant allergies:

Pre-seasonal allergy injections for inhalant allergies: