This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and PNS, Subject name: ENT
[{'content': 'Which agent is used to prevent synechiae after DCR surgery- \nSelect and explain. \nA. Mitomycin, B. Tacrolimus, C. Cyclosporine, D. Doxycycline', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Mitomycin o Now, Mitomycin is being increasingly used for this purpose and is proving more usefulo Mitomycin is an anticancer agent that has shown to decrease scar formation after E.N.T. surgeryo It is an antifibroblastic agent and thus prevents the wound healing and subsequent synechae formationo It is useful in preventing synechae formation in following operations :-i) DCRii) Sinus surgery", 'role': 'assistant'}]