A 19-year-old Chinese male was referred to our department for bilateral preauricular and left cheek abscesses of 1-week duration. He had a significant past medical history of
ulcerative colitis (UC) controlled on mesalazine (4 g/day) and short courses of oral steroids. The patient had received paracetamol, tramadol and lactulose 6 days prior to this admission for perianal pain, all of which he had taken before. There were no other new or traditional medicines prior to the development of facial lesions.
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