This comprehensive guide explains dacryocystorhinostomy (DCR) surgery for treating blocked tear ducts that cause excessive tearing. It covers two surgical approaches (external and endoscopic), pre-operative preparation, potential complications, and detailed post-operative care instructions. The resource includes specific guidance on managing nose bleeds, stent care, medication application, activity restrictions, and recovery timelines spanning 6-12 weeks. Step-by-step instructions for eye drop and ointment application are provided along with emergency contact information.