This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Initial treatment of congenital dacryocystitis - 
Select and explain. 
A. Massaging, B. Probing, C. D C R, D. Ointment
A: Massaging
Answer: A: Massaging 
Explanation: Immediate treatment (at 7 days of life) of congenital dacryocystitis is massage over the lacrimal sac. It cures obstruction in 90% of infants.