Final answer:
D. Acyclovir is the most appropriate medication for reducing the symptoms of genital herpes, as it has been specifically developed to manage outbreaks and make symptoms more manageable.
Step-by-step explanation:
Among the antimicrobial agents listed, Acyclovir would most successfully reduce the symptoms if prescribed for a case of Herpes in a patient. Acyclovir is an antiviral medication specifically developed to treat infections like genital herpes (herpes simplex II). This medication works by reducing the number and duration of episodes of active viral disease when patients develop viral lesions in their skin. Though Acyclovir is not a cure, as the herpes virus remains latent in nervous tissue for life, it significantly aids in managing the symptoms of the disease.
Other options such as Polymyxin and Amphotericin are classes of drugs that target bacteria and fungi, respectively, and would not be effective against a viral infection like herpes. Tetracycline is an antibiotic and thus ineffective against viruses. Chloroquine is primarily an antimalarial drug with some activity against autoimmune disorders but is not indicated for treating herpes simplex virus infections.