A 5-year-old child develops hives, itching, and facial swelling minutes after eating a peanut butter sandwich. What is the likely diagnosis and immediate action required?
This child's symptoms suggest a severe allergic reaction to peanuts, known as anaphylaxis, which is a medical emergency. Immediate action should include administration of epinephrine, if available, and immediate transportation to an emergency department. Following resolution of the acute episode, referral to an allergist for confirmation of the allergy and consideration of allergen immunotherapy would be warranted.