I've took acyclovir 400mg 3x for 5days for hsv 2 outbreak and lesions are still present. should i continue for 5 more days or consult my doctor?

Yes: Yes you need to continue but you also need to consult with your doctor

Consult with doctor: Not enough information. Is the diagnosis certain? Has there been partial improvement? Is this an initial genital herpes infection or a recurrent outbreak? Initial herpes often requires treatment for up to 10 days, but recurrent OBs only need 1-3 days. Acylclovir produces low blood levels in some people; sometimes valacyclovir (Valtrex®) is more reliable. Discuss with your doctor.