Question: A patient presents with a unilateral, painful dermatomal rash and is diagnosed with herpes zoster or Shingles. The NP decides to start the patient on an oral antiviral, acyclovir (Zovirax). The NP knows that this medication is most effective when: Want Online Help? O A. taken on an empty stomach. O B. taken for a period of two weeks. O C. taken within 3 days of the initial appearance of the shingles rash. O D. taken with Zostavax Reset Selection