This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nasolacrimal Disorders, Subject name: Ophthalmology
[{'content': 'Initial maneuver done in congenital dacryocystitis: \nSelect and explain. \nA. Probing, B. Massaging, C. Ointments, D. Observation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Congenital Acute Chronic Cause Non -Canalization Of NLD S.Aureus S.Aureus C/F Epiphora and Discharge Epiphora and Discharge Epiphora and Discharge Treatment <9 months=CRIGLER massage + antibiotic drops when needed (acute infections) 9 mon.- 4 years=probing >4 years= DCR Antibiotics + NSAIDS | DCR DCR Sequelae None Lacrimal fistula Rx:-DCR Mucocele-> pyocele-> fibrosis Rx:- DCT', 'role': 'assistant'}]