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Table 5 Conditions to consider in the differential diagnosis of drug allergy. [5]

From: Drug allergy

IgE-mediated drug allergy
(urticaria, angioedema, anaphylaxis, bronchospasm):
• Carcinoid syndrome
• Insect bites/stings
• Mastocytosis
• Asthma
• Food allergy
• Scombroid fish poisoning
• Latex allergy
• Infection (EBV, hepatitis A, B, C, gastrointestinal parasites)
Non-IgE mediated reactions
(exanthema, DRESS, SJS, TEN):
• Acute graft-versus-host disease
• Kawasaki disease
• Still’s disease
• Psoriasis
• Insect bites/stings
• Viral infection
• Streptococcal infection
  1. IgE: immunoglobulin E; EBV: Epstein-Barr virus; SJS: Stevens-Johnson syndrome; TEN: toxic epidermal necrolysis; DRESS: Drug rash with eosinophilia and systemic symptoms