Anaphylaxis requires immediate care in an emergency department. Those who have severe allergies may have an epinephrine injection syringe, such as EpiPen. Give yourself an injection of epinephrine immediately for symptoms of anaphylaxis.

Following treatment in the emergency department, home care includes:

• Avoid exposure to substances that trigger allergies.
• Take an antihistamine:
• Diphenhydramine (Benadryl)
• Chlorpheniramine
• Take prescribed medications as directed.