**9.3 Allergic reaction**

The wide spectrum of allergic reactions may occur during sedation procedures, it ranges from minor local reaction to life threatening anaphylactic reactions. However, severe allergic reactions during sedation is rare. Diagnosis of anaphylactic reactions under anesthesia is not always easy. Treating physician should immediately stop of most likely precipitating agent, administer adrenaline 0.5 mg intramuscular (IM), secure the airway, administer hydrocortisone, antihistamine as well as IV fluid resuscitation [19].
