RT Book, Section A1 Usatine, Richard P. A1 Smith, Mindy A. A1 Chumley, Heidi S. A1 Mayeaux, E.J. SR Print(0) ID 57679786 T1 Chapter 150. Urticaria and Angioedema T2 The Color Atlas of Family Medicine, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-176964-8 LK accessmedicine.mhmedical.com/content.aspx?aid=57679786 RD 2024/03/29 AB A 26-year-old man was given trimethoprim-sulfamethoxazole for sinusitis and broke out in hives 1 week later. The hives were all over his trunk and arms (Figures 150-1 and 150-2). He had no airway compromise and had only urticaria without angioedema. His sinus symptoms were mostly resolved, so he was told to stop the antibiotic and take an oral antihistamine. The H1-blocker gave him relief of symptoms and the wheals disappeared over the next 2 days.