<prompt> Dose of acyclovir in a patient suffering from herpes genitalis is :200 mg, three times a day for 5 days200 mg, five times a day for 5-7 days600 mg, five times a day for 5 days800 mg, five times a day for 7 days  <response>: Herpes labialis by HSV-I - Tt acyclovir 200mg 5 TD 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 TD 7days Chicken poxvaricella zoster- DOC-Acyclovir 800mg 4TD 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 