What is the immediate management of anaphylaxis after exposure to a drug or food?

• A. Administer antihistamines and observe for response.
• B. Epinephrine IM as first-line; secure airway; call for emergency help; provide oxygen and IV fluids; monitor vitals.
• C. Administer corticosteroids as the only treatment.
• D. Wait for symptoms to resolve without intervention.

Answer: (B)