- Length of the allergy season and severity of symptoms.
- How well medications and/or environmental controls control allergy symptoms.
- Desire to avoid long-term medication use.
- Time: Both types of immunotherapy, allergy shots and allergy drops, can be done at home and will require a significant time commitment.
Fairly common and present as redness and swelling at the injection site.
Much less common than local reactions. Systemic reactions are usually mild and respond rapidly to medications. Symptoms can include increased allergy symptoms such as sneezing, nasal congestion, itchy eyes or hives. Rarely, a serious systemic reaction, called anaphylaxis, can develop after an immunotherapy injection. In addition to the symptoms associated with a mild systemic reaction, symptoms of an anaphylactic reaction can include swelling in the throat, wheezing or a sensation of tightness in the chest, nausea, and dizziness. Systemic reactions require immediate treatment. Most serious reactions develop within 30 minutes of the allergy injections and this is why it is recommended you wait in the office for 30 minutes after your allergy injections.