Acyclovir is used to decrease pain and speed the healing of sores or blisters in people who have certain viral infections that include varicella (chickenpox), herpes zoster (shingles), and first-time or repeat outbreaks of genital herpes (a herpes virus infection that causes occasional sores to form in the genital and rectum areas).
Disclaimer:
This information is not intended to substitute for professional medical advice. Be sure to contact your physician, pharmacist, or other health care provider for more information about this medication.

