This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Viral infections, Subject name: Dental
[{'content': 'Dose of acyclovir in a patient suffering from herpes genitalis is : \nSelect and explain. \nA. 200 mg, three times a day for 5 days, B. 200 mg, five times a day for 5-7 days, C. 600 mg, five times a day for 5 days, D. 800 mg, five times a day for 7 days', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Herpes labialis by HSV-I - T/t acyclovir 200mg 5 T/D 5-7 days or Herpes genitalis by HSV-II Acyclovir 200 mg, five times a day for 5-7 days OR Acyclovir 400mg TDS 5-7 days Herpes zoster- DOC acyclovir 800mg 5 T/D * 7days Chicken pox(varicella zoster)- DOC-Acyclovir 800mg 4T/D 7 days If patient immunocompromised- IV. Acyclovir Incase of acyclovir resistance- foscainet Recurrent (i.e. >6 episodes 1yr) h.labialis -prophylactic Therapy Acyclovir 400mg BD 6 Months', 'role': 'assistant'}]