U.S. doctors online nowAsk doctors free
A 47-year-old member asked:

How quickly does the acyclovir work for herpes out break?

1 doctor answer1 doctor weighed in
Dr. Alan Jackson
Addiction Medicine 31 years experience
If started: Within 72 hoursof the onset you should notice the difference withe 3-4 days but take the entire prescribed dose.
Last updated Aug 17, 2013

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.