Pancreatic abscess occurs as sequelae of acute pancreatitis. The standard treatment of infected pancreatic abscess is open surgical drainage and antibiotics. Recently, minimally invasive drainage methods such as image-guided percutaneous catheter drainage, transluminal endoscopic drainage through the stomach or duodenum, and retroperitoneal surgical drainage are becoming the trend. Open surgical drainage has a drawback of triggering a strong inflammatory response that can lead to multi-organ failure, bleeding, and gastrointestinal fistula unlike the minimally invasive approach. However, in the absence of facilities and expertise for minimally invasive drainage techniques, coupled with a patient with extensive/diffuse pancreatic necrosis and clinical deterioration, open surgical drainage may suffice. We report a case of pancreatic abscess which developed in a middle-aged man after few months of treatment and recovery from acute pancreatitis that was managed by open surgical drainage and parenteral antibiotics with good outcome.