Do you have any of the following symptoms that require emergency treatment? Call 911 or other emergency services immediately.

• Signs of shock
• Moderate to severe difficulty breathing, wheezing, or tightness in the chest
• Rapid swelling of the throat, tongue, lips, eyelids, or face
• Drooling and an inability to swallow
• A severe allergic reaction (anaphylaxis) to the same allergen in the past
• A rash that looks like bruises (purpura) or blood spots (petechiae) under the skin and that occurs along with mental changes, such as confusion, irritability, or extreme sleepiness