Some common ways that anesthesiologists treat pain include "patient controlled pain relief" and "peripheral nerve blocks," but these pain relief treatment methods are typically used for major surgeries such as cesarean section, open heart surgery, joint replacement surgery, etc…
痔瘡手術算是小手術，術後大約1-2天就會出院，出院後將伴隨術後的中重度疼痛，並且延續4-5天以上，卻通常僅有短效的口服止痛藥可以用於治療。
不過現在麻醉科有一個新藥，是由台灣所研發，This drug’s pain relief effects last for up to seven days. The phase III clinical trial of this drug was conducted with patients undergoing hemorrhoid surgery.，剛好此藥的三期臨床試驗也是用在痔瘡手術，對痔瘡術後的患者來說會是一個不錯的新選擇。
