Can I Continue Taking Antiviral Granules If My Sore Throat Persists But My Runny Nose Has Improved?

I have had a sore throat and runny nose for more than a week. I have been taking antiviral granules for 5 days. After using astepro, my runny nose has been greatly reduced, but my sore throat has not improved. Can I continue to take antiviral granules?