4 doctors weighed in:

Will giving antiviral agent like valacyclovir later than 72 hours upon start of herpes zoster still be effective?

4 doctors weighed in
Dr. Reid Blackwelder
Family Medicine
3 doctors agree

In brief: Not usually

Herpes infections can be treated with antivirals such as Acyclovir and valcyclovir, but to really have an impact need to be started within 72 hours.
Any later and the symptoms are really not effected much at all.

In brief: Not usually

Herpes infections can be treated with antivirals such as Acyclovir and valcyclovir, but to really have an impact need to be started within 72 hours.
Any later and the symptoms are really not effected much at all.
Dr. Reid Blackwelder
Dr. Reid Blackwelder
Thank
Get help from a real doctor now
Dr. Vicken Poochikian
Board Certified, Internal Medicine
38 years in practice
2M people helped
Continue
108,000 doctors available
Read more answers from doctors