“…Such reactions include cellulitis, herpes zoster, lymphomatoid drug eruption, urticaria, injection site reactions, recurrent erythema annulare centrifugum, bullous pemphigoid, erythema multiforme, and eczematous drug eruptions. [3][4][5][6][7][8] Drugs frequently associated with fixed drug eruption include antibacterial agents (trimethoprim-sulfamethoxazole, tetracyclines, penicillins, quinolones, and dapsone), nonsteroidal anti-inflammatory drugs (acetylsalicylic acid, ibuprofen, naproxen, and mefenamic acid), acetaminophen (paracetamol), barbiturates, antimalarials (quinine), and anticonvulsants (carbamazepine). 1 Our patient presented with fixed drug eruption induced by ustekinumab.…”