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: Dental
DOC for herpes zoster is – 
Select and explain. 
A. Vidarabine, B. Acyclovir, C. Idoxuridine, D. Aclidine
B: Acyclovir
Answer: B: Acyclovir 
Explanation: For typical cases of herpes zoster, oral acyclovir is used. Oral famciclovir or valaciclovir have advantage of a more convenient dosing.