This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: ENT
Micro-Wick and Microcatheter is used in administering sustained release preparation in 
Select and explain. 
A. Epistaxis treatment, B. Delivery of antibiotics to round window, C. Freys Syndrome, D. Drooling of saliva
B: Delivery of antibiotics to round window
Answer: B: Delivery of antibiotics to round window 
Explanation: There are many techniques and drugs used to treat disorders of the inner ear. The three most common techniques in use today are: a. TRANSTYMPANIC INJECTION - using a syringe and a small gauge needle. b. ROUND WINDOW MICROCATHETER - A small catheter surgically implanted under the eardrum which delivers medicine to a small window to the inner ear. c. SILVERSTEIN MICROWICK - A small tube with a "wick" through the tube to the round window, allowing the patient to self-medicate. Ref : ENT textbook by Dhingra 6th edition Pgno : 104