What kind of side effects can allergy shots cause?
Allergy shots are generally well tolerated. The most common side effect is swelling, itching, and redness at the site of the injection. Symptoms at any site other than where the shot was given may be a sign of a serious reaction called anaphylaxis. This is a potentially life-threatening reaction and needs to be treated immediately. We take every precaution to reduce the risk of anaphylaxis. Because of this, every time you come for a shot, you must stay for 30 minutes. There are no exceptions to this rule.