 55 yo WM with reactive airways disease, allergic rhinitis who was in his usual state of health until he underwent a dental extraction with administration of cephalexin 1 week prior to admission. Approximately one day after the dental procedure, he began having nausea, and abdominal pain along with fatigue. The abdominal pain was described as pressure-like and was located in the epigastrium and periumbilical regions. He initially attributed the symptoms to a side effect of the antibiotic he was taking. However, with worsening of his symptoms, he presented to the ER 5 days after dental extraction.